question_answer

From P a line parallel to y-axis is drawn and from Q a line parallel to x-axis is drawn. Both these lines intersect at the point R. If the coordinates of P and Q are (3, 4) and (1, - 7), then find the coordinates of R.

A)  (3, 7)             

B)         (3, - 7)  

C) \[\left( \text{l},-\text{4} \right)\]           

D)         \[\left( \text{l},\text{4} \right)\]

Correct Answer: B

Solution :

 Co-ordinates of the required point \[R=(3,-7)\]