In the given figure P(5, -3) and Q(3, y) are the points of trisection of the line segment joining A(7, -2) and B(1, -5). Then, y equals A. 2B. 4C. `-4`D. `(-5)/(2)`

In the given figure P(5, -3) and Q(3, y) are the points of trisection

1.	In the given figure P(5, -3) and Q(3, y) are the points of trisection of the line segment joining A(7, -2) and B(1, -5). Then, y equals A. 2B. 4C. `-4`D. `(-5)/(2)`
Answer» Correct Answer - C Q(3, y) divides AB in the ratio 2:1. So, Q is `((2 xx 1 + 1 xx 7)/(2+1), (2 xx (-5) + 1 xx (-2))/(2+1)), i.e., (3, -4).` Hence, y = -4.

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