Question

29. Equation of the line passsing through (-1, 2) and
perpendicular to x - y + 2 = 0 is

(A) x+y=1
(B) x - y =1
(C) x + y = 2
(D) X-y+1 = 0​

Answer 1

Answer:

$slope \: \: of \: \: line \: \: x - y + 2 = 0 \: \: is \: \: - 1 \\ \\ m = 1 \\ \\line \: \: is \: = > y - 2 = 1(x + 1) \\ \\ y = x + 3$