Question

If A (5, 3), B(11,-5) and P(12,y) are the vertices of a right triangle right angled at P, then y =


(A) -2,-4
(B) -2,4
(C) 2,-4
(D) 2


please help me!!​

Answer 1

Answer:

GIVEN :-

A (5, 3), B(11,-5) and P(12,y) are the vertices of a right triangle right angled at P

TO FIND :-

Find value of y =?

SOLUTION :-

2y²-4y-16=0

y²-2y-8=0

(y²+2y)-(4y-8)=0

y(y+2)-4(y+2)=0

(y-4)(y+2)=0

y= 4 or y= - 2