142 + Interview Questions in 2D Transformation And Viewing in Computer Graphics Page 3 InterviewSolution

101.	How many minimum numbers of zeros are there in ‘3 x 3’ triangular matrix?(a) 4(b) 3(c) 5(d) 6The question was asked in class test.The doubt is from Composite 2D Transformations topic in section 2D Transformation and Viewing of Computer Graphics
Answer» Correct option is (B) 3 The explanation: In a TRIANGULAR matrix, all entries, EITHER above or below the diagonal are zero. So in case of ‘3 x 3’ matrix, there should be minimum 3 elements as 0.

Discussion

102.	Which one of the following is the correct notation of a matrix with ‘m’ rows and ’n’ columns?(a) m + n(b) m – n(c) m x n(d) m/nThe question was asked in a national level competition.The question is from Composite 2D Transformations in portion 2D Transformation and Viewing of Computer Graphics
Answer» Right choice is (c) m X n The EXPLANATION is: m x n represents a matrix with ‘m’ number of rows and ‘n’ number of COLUMNS, while others are just arithmetic OPERATIONS which can be done on 2 matrices.

Discussion

103.	Which transformation distorts the shape of an object such that the transformed shape appears as if the object were composed of internal layers that had been caused to slide over each other?(a) Rotation(b) Scaling up(c) Scaling down(d) ShearingThis question was addressed to me in an interview for job.My question comes from Composite 2D Transformations topic in chapter 2D Transformation and Viewing of Computer Graphics
Answer» Right answer is (d) Shearing To explain: TWO common shearing transformations are the type of transformation that shift coordinate x values coordinate y values. In SHEAR transformation, the transformed SHAPE appears as if the object were COMPOSED of internal layers that had been caused to slide over each other.

Discussion

104.	Transpose of a column matrix is________________(a) Zero matrix(b) Identity matrix(c) Row matrix(d) Diagonal matrixI had been asked this question in an interview.My doubt stems from Composite 2D Transformations in portion 2D Transformation and Viewing of Computer Graphics
Answer» Right CHOICE is (c) Row MATRIX To explain I would say: Transpose of a matrix is a matrix which is made by interchanging the rows and COLUMNS of the original matrix. Hence the transpose of column matrix is row matrix and vice VERSA.

Discussion

105.	Reversing the order in which a sequence of transformations is performed may affect the transformed position of an object.(a) True(b) FalseI had been asked this question in quiz.The query is from Composite 2D Transformations in section 2D Transformation and Viewing of Computer Graphics
Answer» Correct OPTION is (a) True The explanation is: As we know that, MATRIX transformations are not commutative and the ORDER of transformation matters. So it will affect the POSITION of the OBJECT.

Discussion

106.	Which of the following is NOT correct? (A, B and C are matrices)(a) A.B = B.A(b) A.B.C = (A.B).C = A.(B.C)(c) C(A+B) = C.A + C.B(d) 1 A = A 1I have been asked this question in examination.The doubt is from Composite 2D Transformations topic in portion 2D Transformation and Viewing of Computer Graphics
Answer» Correct CHOICE is (a) A.B = B.A The best explanation: MATRIX multiplication does not commute. We cannot SWITCH the ORDER of the factors and expect to end up with the same result. Hence, A.B ≠ B.A.

Discussion

107.	Reflection about the line y=0, the axis, is accomplished with the transformation matrix with how many elements as ‘0’?(a) 8(b) 9(c) 4(d) 6I had been asked this question in homework.My question is based upon Composite 2D Transformations in portion 2D Transformation and Viewing of Computer Graphics
Answer» CORRECT answer is (d) 6 Explanation: The MATRIX used for reflection about y=0 is an identity matrix with 6 ‘0’s and TWO ‘1’s and one ELEMENT as ‘-1’.

Discussion

108.	General pivot point rotation can be expressed as _____________________(a) T(zr,yr).R(θ).T(-zr,-yr) = R(xr,yr,θ)(b) T(xr,yr).R(θ).T(-xr,-yr) = R(xr,yr,θ)(c) T(xr,yr).R(θ).T(-xr,-yr) = R(zr,yr,θ)(d) T(xr,yr).R(θ).T(-xr,-yr) = R(xr,yr,Q)I have been asked this question in a job interview.I would like to ask this question from Composite 2D Transformations in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The CORRECT answer is (b) T(xr,yr).R(θ).T(-xr,-yr) = R(xr,yr,θ) EXPLANATION: Since the FIRST two parameters are in 2D, HENCE only ‘x’ and ‘y’ can be variable along with ‘θ’. In other options, there is one more parameter ‘z’.

Discussion

109.	Two successive translations are not commutative.(a) True(b) FalseI had been asked this question by my school teacher while I was bunking the class.My question is from Composite 2D Transformations in chapter 2D Transformation and Viewing of Computer Graphics
Answer» Correct choice is (B) False Best EXPLANATION: According to commutative property, the ORDER does not matter. Same as in the case of SUCCESSIVE translations. Hence we can say that two successive translations are commutative.

Discussion

110.	We can combine the multiplicative and translational terms for 2D into a single matrix representation by expanding(a) 2 by 2 matrix into 44 matrix(b) 2 by 2 matrix into 33(c) 3 by 3 matrix into 2 by 2(d) Only cI had been asked this question by my school principal while I was bunking the class.The origin of the question is Matrix Representations and Homogeneous Coordinates topic in chapter 2D Transformation and Viewing of Computer Graphics
Answer» CORRECT answer is (b) 2 by 2 matrix into 3*3 For explanation I would say: We can combine the multiplicative and translational terms for 2D into a SINGLE matrix representation by expanding 2 by 2 matrix representation into 3 by 3.

Discussion

111.	The general homogeneous coordinate representation can also be written as(a) (h.x, h.y, h.z)(b) (h.x, h.y, h)(c) (x, y, h.z)(d) (x,y,z)I have been asked this question in my homework.I need to ask this question from Matrix Representations and Homogeneous Coordinates in section 2D Transformation and Viewing of Computer Graphics
Answer» CORRECT CHOICE is (B) (h.x, h.y, h) Explanation: The general HOMOGENEOUS coordinate representation can ALSO be written as (h.x, h.y, h).

Discussion

112.	Two successive translations are___________________(a) Multiplicative(b) Inverse(c) Subtractive(d) AdditiveThis question was addressed to me during an interview for a job.The query is from Composite 2D Transformations topic in division 2D Transformation and Viewing of Computer Graphics
Answer» Correct CHOICE is (d) Additive The EXPLANATION: Successive translations are additive. P’= T(tx1, ty1) .[T(tx2, ty2)] P = {T(tx1, ty1). T(tx2, ty2)}.P Or T(tx1, ty1). T(tx2, ty2) = T(tx1+tx2 , ty1 + ty2).

Discussion

113.	If point are expressed inhomogeneous coordinates then the pair of (x, y) is represented as(a) (x’, y’, z’)(b) (x, y, z)(c) (x’, y’, w)(d) (x’, y’, w)I had been asked this question during a job interview.My enquiry is from Matrix Representations and Homogeneous Coordinates in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The CORRECT OPTION is (d) (x’, y’, W) Explanation: If POINT are EXPRESSED in homogeneous coordinates then we add 3rd coordinate to the point (x, y), that is represented as (x’, y’, w).

Discussion

114.	For 2D transformation the value of third coordinate i.e. w=?(a) 1(b) 0(c) -1(d) Any valueThe question was asked in quiz.I want to ask this question from Matrix Representations and Homogeneous Coordinates in section 2D Transformation and Viewing of Computer Graphics
Answer» RIGHT OPTION is (a) 1 Explanation: For 2D we have (X, y, 1) i.e. w=1.

Discussion

115.	The matrix representation for rotation in homogeneous coordinates is(a) P’=T+P(b) P’=SP(c) P’=RP(d) P’=dx+dyThis question was posed to me in an internship interview.My doubt stems from Matrix Representations and Homogeneous Coordinates topic in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The correct choice is (C) P’=RP Easy explanation: The MATRIX representation for ROTATION is P’=RP.

Discussion

116.	What is the use of homogeneous coordinates and matrix representation?(a) To treat all 3 transformations in a consistent way(b) To scale(c) To rotate(d) To shear the objectThis question was addressed to me in final exam.This intriguing question originated from Matrix Representations and Homogeneous Coordinates topic in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The correct option is (a) To treat all 3 transformations in a consistent WAY The EXPLANATION is: To treat all 3 transformations in a consistent way, we use homogeneous coordinates and MATRIX representation.

Discussion

117.	The matrix representation for scaling in homogeneous coordinates is(a) P’=SP(b) P’=RP(c) P’=dx+dy(d) P’=S*SThe question was asked by my college director while I was bunking the class.I want to ask this question from Matrix Representations and Homogeneous Coordinates topic in portion 2D Transformation and Viewing of Computer Graphics
Answer» The correct answer is (a) P’=SP To explain I would SAY: The matrix REPRESENTATION for scaling is P’=SP.

Discussion

118.	We control the location of a scaled object by choosing the position is known as(a) Pivot point(b) Fixed point(c) Differential scaling(d) Uniform scalingThis question was posed to me in examination.My question is taken from 2D Scaling topic in division 2D Transformation and Viewing of Computer Graphics
Answer» Correct ANSWER is (B) Fixed point Easiest EXPLANATION: None.

Discussion

119.	The objects transformed using the equationP’=S*P should be(a) Scaled(b) Repositioned(c) Both a and b(d) Neither a nor bThe question was posed to me in a job interview.This interesting question is from 2D Scaling in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The CORRECT option is (c) Both a and b The explanation: The OBJECTS transformed using the equation P’=S*P should be SCALED and repositioned.

Discussion

120.	If the value of sx=1and sy=1 then(a) Reduce the size of object(b) Distort the picture(c) Produce an enlargement(d) No change in the size of an objectI have been asked this question in an interview for job.My doubt stems from 2D Scaling topic in division 2D Transformation and Viewing of Computer Graphics
Answer» The CORRECT answer is (d) No CHANGE in the size of an OBJECT Easiest explanation: sx=sx=1 does not change the size of the object.

Discussion

121.	The polygons are scaled by applying the following transformation.(a) X’=x * Sx + Xf(1-Sx) and Y’=y * Sy + Yf(1-Sy)(b) X’=x * Sx + Xf(1+Sx) and Y’=y * Sy + Yf(1+Sy)(c) X’=x * Sx + Xf(1-Sx) and Y’=y * Sy – Yf(1-Sy)(d) X’=x * Sx * Xf(1-Sx) and Y’=y * Sy * Yf(1-Sy)The question was asked in exam.My question is from 2D Scaling topic in chapter 2D Transformation and Viewing of Computer Graphics
Answer» Correct choice is (a) X’=x * Sx + Xf(1-Sx) and Y’=y * SY + YF(1-Sy) The explanation is: The POLYGONS are scaled by applying the TRANSFORMATION X’=x * Sx + Xf(1-Sx) and Y’=y * Sy + Yf(1-Sy).

Discussion

122.	If the scaling factors values sx and sy are assigned to unequal values then(a) Uniform rotation is produced(b) Uniform scaling is produced(c) Differential scaling is produced(d) Scaling cannot be doneI had been asked this question during an online exam.My question is taken from 2D Scaling topic in section 2D Transformation and Viewing of Computer Graphics
Answer» The correct answer is (c) Differential SCALING is produced The best I can EXPLAIN: Unequal VALUES for SX and sy results in differential scaling that is often used in design APPLICATIONS.

Discussion

123.	Scaling of a polygon is done by computing(a) The product of (x, y) of each vertex(b) (x, y) of end points(c) Center coordinates(d) Only aThe question was asked in an interview for internship.My question comes from 2D Scaling in chapter 2D Transformation and Viewing of Computer Graphics
Answer» Right answer is (d) Only a Explanation: SCALING of a polygon is done by COMPUTING the product of (x, y) of each vertex with scaling FACTOR sx and SY to produce the transformation coordinates ( Xnew, Ynew).

Discussion

124.	The two-dimensional scaling equation in the matrix form is(a) P’=P+T(b) P’=SP(c) P’=PR(d) P’=R+SI had been asked this question during an interview.Question is from 2D Scaling topic in section 2D Transformation and Viewing of Computer Graphics
Answer» RIGHT OPTION is (b) P’=SP Explanation: The 2D SCALING equation is P’=SP.

Discussion

125.	If the scaling factors values sx and sy < 1 then(a) It reduces the size of object(b) It increases the size of object(c) It stunts the shape of an object(d) NoneThe question was posed to me in an interview for internship.This interesting question is from 2D Scaling topic in portion 2D Transformation and Viewing of Computer Graphics
Answer» Correct ANSWER is (a) It reduces the size of object The explanation is: If the scaling factors VALUES sx and SY < 1 then it reduces the size of object.

Discussion

126.	An ellipse can also be rotated about its center coordinates by rotating(a) End points(b) Major and minor axes(c) Only a(d) NoneI have been asked this question in a job interview.This intriguing question originated from 2D Rotation in division 2D Transformation and Viewing of Computer Graphics
Answer» The correct OPTION is (b) MAJOR and MINOR axes To ELABORATE: None.

Discussion

127.	If the scaling factors values sx and sy are assigned to the same value then(a) Uniform rotation is produced(b) Uniform scaling is produced(c) Scaling cannot be done(d) Scaling can be done or cannot be doneThe question was posed to me during an online interview.Asked question is from 2D Scaling topic in section 2D Transformation and Viewing of Computer Graphics
Answer» The CORRECT choice is (b) Uniform scaling is produced The BEST explanation: When sx and sy are assigned the same value then uniform scaling is produced that maintains relative OBJECT PROPORTIONS.

Discussion

128.	The original coordinates of the point in polor coordinates are(a) X’=r cos (Ф +ϴ) and Y’=r cos (Ф +ϴ)(b) X’=r cos (Ф +ϴ) and Y’=r sin (Ф +ϴ)(c) X’=r cos (Ф -ϴ) and Y’=r cos (Ф -ϴ)(d) X’=r cos (Ф +ϴ) and Y’=r sin (Ф -ϴ)This question was addressed to me during an online exam.I would like to ask this question from 2D Rotation in chapter 2D Transformation and Viewing of Computer Graphics
Answer» CORRECT ANSWER is (b) X’=r COS (Ф +ϴ) and Y’=r SIN (Ф +ϴ) To EXPLAIN: The original coordinates of the point in polor coordinates are X’=r cos (Ф +ϴ) and Y’=r sin (Ф +ϴ).

Discussion

129.	________ is the rigid body transformation that moves object without deformation.(a) Translation(b) Scaling(c) Rotation(d) ShearingI have been asked this question in my homework.I'd like to ask this question from 2D Rotation topic in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The correct option is (c) Rotation For EXPLANATION: Rotation is the RIGID body transformation that MOVES object without DEFORMATION.

Discussion

130.	The two-dimensional rotation equation in the matrix form is(a) P’=P+T(b) P’=RP(c) P’=PP(d) P’=R+PI got this question in a national level competition.This intriguing question comes from 2D Rotation topic in portion 2D Transformation and Viewing of Computer Graphics
Answer» CORRECT CHOICE is (B) P’=RP Easy explanation: The 2D TRANSLATION equation is P’=RP.

Discussion

131.	The rotation axis that is perpendicular to the xy plane and passes through the pivot point is known as(a) Rotation(b) Translation(c) Scaling(d) ShearingThe question was asked in final exam.This intriguing question comes from 2D Rotation in division 2D Transformation and Viewing of Computer Graphics
Answer» Correct OPTION is (a) Rotation To elaborate: The rotation TRANSFORMATION is also described as a rotation about a rotation axis that is perpendicular to the XY PLANE and passes through the PIVOT point.

Discussion

132.	Positive values for the rotation angle ϴ defines(a) Counterclockwise rotations about the end points(b) Counterclockwise translation about the pivot point(c) Counterclockwise rotations about the pivot point(d) Negative directionI got this question during an internship interview.My query is from 2D Rotation in portion 2D Transformation and Viewing of Computer Graphics
Answer» Correct ANSWER is (C) Counterclockwise rotations about the PIVOT point Easiest explanation: A positive VALUE for the rotation ANGLE ϴ defines counterclockwise rotations about the pivot point.

Discussion

133.	To generate a rotation , we must specify(a) Rotation angle ϴ(b) Distances dx and dy(c) Rotation distance(d) All of the mentionedThe question was asked by my college director while I was bunking the class.The above asked question is from 2D Rotation in division 2D Transformation and Viewing of Computer Graphics
Answer» Right answer is (a) ROTATION angle ϴ Explanation: GENERATE a rotation, we MUST specify rotation angle ϴ of the rotation point or PIVOT point which the object is to be ROTATED.

Discussion

134.	The basic geometric transformations are(a) Translation(b) Rotation(c) Scaling(d) All of the mentionedThe question was asked in final exam.The doubt is from 2D Translation topic in section 2D Transformation and Viewing of Computer Graphics
Answer» RIGHT OPTION is (d) All of the mentioned To elaborate: These are the BASIC GEOMETRIC transformations and other transformations are REFLECTION and shear.

Discussion

135.	To change the position of a circle or ellipse we translate(a) Center coordinates(b) Center coordinates and redraw the figure in new location(c) Outline coordinates(d) All of the mentionedThis question was addressed to me in quiz.The above asked question is from 2D Translation in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The correct option is (b) CENTER coordinates and REDRAW the figure in new location The EXPLANATION: By TRANSLATING the center coordinates and redraw the figure in new location we can change the position of a CIRCLE or ellipse.

Discussion

136.	Polygons are translated by adding __________ to the coordinate position of each vertex and the current attribute setting.(a) Straight line path(b) Translation vector(c) Differences(d) Only bThe question was posed to me in an international level competition.My doubt stems from 2D Translation in portion 2D Transformation and Viewing of Computer Graphics
Answer» The CORRECT CHOICE is (d) Only b The BEST EXPLANATION: NONE.

Discussion

137.	A straight line segment is translated by applying the transformation equation(a) P’=P+T(b) Dx and Dy(c) P’=P+P(d) Only cI had been asked this question by my college professor while I was bunking the class.The question is from 2D Translation in portion 2D Transformation and Viewing of Computer Graphics
Answer» Right answer is (a) P’=P+T The explanation is: A straight line SEGMENT is translated by APPLYING the TRANSFORMATION EQUATION P’=P+T to each of line endpoints.

Discussion

138.	In 2D-translation, a point (x, y) canmove to the new position (x’, y’) by using the equation(a) x’=x+dx and y’=y+dx(b) x’=x+dx and y’=y+dy(c) X’=x+dy and Y’=y+dx(d) X’=x-dx and y’=y-dyThis question was posed to me during an internship interview.Asked question is from 2D Translation topic in section 2D Transformation and Viewing of Computer Graphics
Answer» Right answer is (b) x’=x+DX and y’=y+DY For EXPLANATION I WOULD say: By ADDING translation distance dx and dy to its originsl position (x, y) we can obtain a new position (x’, y’).

Discussion

139.	_________ is a rigid body transformation that moves objects without deformation.(a) Rotation(b) Scaling(c) Translation(d) All of the mentionedI got this question in quiz.Enquiry is from 2D Translation topic in portion 2D Transformation and Viewing of Computer Graphics
Answer» Correct choice is (c) Translation To elaborate: Translation a rigid BODY transformation that MOVES objects WITHOUT DEFORMATION.

Discussion

140.	The two-dimensional translation equation in the matrix form is(a) P’=P+T(b) P’=P-T(c) P’=P*T(d) P’=pI got this question in an interview for internship.I would like to ask this question from 2D Translation in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The CORRECT CHOICE is (a) P’=P+T Explanation: The 2D TRANSLATION EQUATION is P’=P+T.

Discussion

141.	The translation distances (dx, dy) is called as(a) Translation vector(b) Shift vector(c) Both a and b(d) Neither a nor bThis question was posed to me during a job interview.My question is based upon 2D Translation in chapter 2D Transformation and Viewing of Computer Graphics
Answer» The correct choice is (C) Both a and b To elaborate: The TRANSLATION distances (dx, dy) from its original POSITION is called as translation VECTOR or shift vector.

Discussion

142.	We translate a two-dimensional point by adding(a) Translation distances(b) Translation difference(c) X and Y(d) Only aThe question was posed to me in exam.The above asked question is from 2D Translation in section 2D Transformation and Viewing of Computer Graphics
Answer» Right choice is (d) Only a To explain: We can translate 2D POINT by adding translation DISTANCES dx and dy.

Discussion

Explore topic-wise InterviewSolutions in .

How many minimum numbers of zeros are there in ‘3 x 3’ triangular matrix?(a) 4(b) 3(c) 5(d) 6The question was asked in class test.The doubt is from Composite 2D Transformations topic in section 2D Transformation and Viewing of Computer Graphics

Transpose of a column matrix is________________(a) Zero matrix(b) Identity matrix(c) Row matrix(d) Diagonal matrixI had been asked this question in an interview.My doubt stems from Composite 2D Transformations in portion 2D Transformation and Viewing of Computer Graphics

Reversing the order in which a sequence of transformations is performed may affect the transformed position of an object.(a) True(b) FalseI had been asked this question in quiz.The query is from Composite 2D Transformations in section 2D Transformation and Viewing of Computer Graphics

Two successive translations are not commutative.(a) True(b) FalseI had been asked this question by my school teacher while I was bunking the class.My question is from Composite 2D Transformations in chapter 2D Transformation and Viewing of Computer Graphics

Two successive translations are___________________(a) Multiplicative(b) Inverse(c) Subtractive(d) AdditiveThis question was addressed to me during an interview for a job.The query is from Composite 2D Transformations topic in division 2D Transformation and Viewing of Computer Graphics

For 2D transformation the value of third coordinate i.e. w=?(a) 1(b) 0(c) -1(d) Any valueThe question was asked in quiz.I want to ask this question from Matrix Representations and Homogeneous Coordinates in section 2D Transformation and Viewing of Computer Graphics

The objects transformed using the equationP’=S*P should be(a) Scaled(b) Repositioned(c) Both a and b(d) Neither a nor bThe question was posed to me in a job interview.This interesting question is from 2D Scaling in chapter 2D Transformation and Viewing of Computer Graphics

Scaling of a polygon is done by computing(a) The product of (x, y) of each vertex(b) (x, y) of end points(c) Center coordinates(d) Only aThe question was asked in an interview for internship.My question comes from 2D Scaling in chapter 2D Transformation and Viewing of Computer Graphics

The two-dimensional scaling equation in the matrix form is(a) P’=P+T(b) P’=S*P(c) P’=P*R(d) P’=R+SI had been asked this question during an interview.Question is from 2D Scaling topic in section 2D Transformation and Viewing of Computer Graphics

An ellipse can also be rotated about its center coordinates by rotating(a) End points(b) Major and minor axes(c) Only a(d) NoneI have been asked this question in a job interview.This intriguing question originated from 2D Rotation in division 2D Transformation and Viewing of Computer Graphics

________ is the rigid body transformation that moves object without deformation.(a) Translation(b) Scaling(c) Rotation(d) ShearingI have been asked this question in my homework.I'd like to ask this question from 2D Rotation topic in chapter 2D Transformation and Viewing of Computer Graphics

The two-dimensional rotation equation in the matrix form is(a) P’=P+T(b) P’=R*P(c) P’=P*P(d) P’=R+PI got this question in a national level competition.This intriguing question comes from 2D Rotation topic in portion 2D Transformation and Viewing of Computer Graphics

The rotation axis that is perpendicular to the xy plane and passes through the pivot point is known as(a) Rotation(b) Translation(c) Scaling(d) ShearingThe question was asked in final exam.This intriguing question comes from 2D Rotation in division 2D Transformation and Viewing of Computer Graphics

The basic geometric transformations are(a) Translation(b) Rotation(c) Scaling(d) All of the mentionedThe question was asked in final exam.The doubt is from 2D Translation topic in section 2D Transformation and Viewing of Computer Graphics

_________ is a rigid body transformation that moves objects without deformation.(a) Rotation(b) Scaling(c) Translation(d) All of the mentionedI got this question in quiz.Enquiry is from 2D Translation topic in portion 2D Transformation and Viewing of Computer Graphics

The two-dimensional translation equation in the matrix form is(a) P’=P+T(b) P’=P-T(c) P’=P*T(d) P’=pI got this question in an interview for internship.I would like to ask this question from 2D Translation in chapter 2D Transformation and Viewing of Computer Graphics

The translation distances (dx, dy) is called as(a) Translation vector(b) Shift vector(c) Both a and b(d) Neither a nor bThis question was posed to me during a job interview.My question is based upon 2D Translation in chapter 2D Transformation and Viewing of Computer Graphics

We translate a two-dimensional point by adding(a) Translation distances(b) Translation difference(c) X and Y(d) Only aThe question was posed to me in exam.The above asked question is from 2D Translation in section 2D Transformation and Viewing of Computer Graphics

The two-dimensional scaling equation in the matrix form is(a) P’=P+T(b) P’=SP(c) P’=PR(d) P’=R+SI had been asked this question during an interview.Question is from 2D Scaling topic in section 2D Transformation and Viewing of Computer Graphics

The two-dimensional rotation equation in the matrix form is(a) P’=P+T(b) P’=RP(c) P’=PP(d) P’=R+PI got this question in a national level competition.This intriguing question comes from 2D Rotation topic in portion 2D Transformation and Viewing of Computer Graphics