1.

Find the equation of the right bisector of the line segment joining the points (3, 4) and ( – 1, 2).

Answer»

Given, The line segment joining the points (3,4) and ( – 1,2) 

To Find: Find the equation of the line 

Formula used: The equation of line is (y – y1) = m(x – x1

Explanation: Here, The right bisector PQ of AB at C and is perpendicular to AB

Now, The coordinate of the mid – points =  \([\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}]\) 

The coordinates of point C are = \([\frac{3-1}{2},\frac{4+2}{2}]\) = (1,3) 

And, The slope of PQ = \(\frac{1}{Slope\, of \ AB}\) 

The slope of PQ, m = \(\frac{1}{2-4}\) (-1 - 3) = \(\frac{4}{-2}\) 

So, The slope of PQ, m = – 2 

The required equation of PQ is (y – y1) = m(x – x1)

 y – 3 = – 2(x – 1) 

y – 3 = – 2x + 2 

y + 2x = 5 

Hence, The equation of line is y + 2x = 5



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