InterviewSolution
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InterviewSolution
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In the figure, let x denotes the number of steps and y denotes the number of matchsticks used. Find the relationship between Y and y by tabulation. |
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Answer» Let x denote the number of steps and y denote the number of matchsticks used. In step 1, x = 1 ⇒ y = number of mathsticks used is 1 In step 2, x = 2 ⇒ y = number of mathsticks used is 4 In step 3, x = 3 ⇒ y = number of mathsticks used is 7 and so on. The values of v and y are tabulated as
x = 1 ⇒ y = 1 = 3(1) – 2 x = 2 ⇒ y = 4 = 3(2) – 2 x = 3 ⇒ y = 7 = 3(3) – 2 x = 4 ⇒ y = 10 = 3(4) – 2 From the table y = 3x – 2 |
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