Question

find the equation of 2nd diagonal of square when equation of a diagonal of 8x _ 15y = 0 and a point is (1,2).​

Answer 1

Answer:

15x+8y = 31

Step-by-step explanation:

8x-15y=0

slope=8/15

Diagonals of square are mutually perpendicular.

=> slope of other diagonal= -15/8. {m1.m2= -1}

Also we have a point on this line.

using slope point form of equation

(y-2) = -15(x-1)

8

8y-16= -15x + 15

15x+8y = 31