A) (1, 3)
B) (3, -1)
C) (2, 2)
D) (4, 0)
Correct Answer: A
Solution :
[a]: From the figure let B is the foot of perpendicular so coordinates of B are (h,4-h). Slope of BA = \[\frac{4-4+h}{2-h}=\frac{h}{2-h}\] Slope of given line = -1. Since both the lines are perpendicular so \[\frac{h}{2-h}(-1)=(-1)\Rightarrow h=1\] \[\therefore \]Coordinates of foot of perpendicular are (1,3).You need to login to perform this action.
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