Question

Q.2
Lines ax + by + d = 0 and ax + by + c = 0 are..
(a) parallel to each other
(c) perpendicular lines
(b) identical lines
(d) Parallel to the line y = x​

Answer 1

Answer:

Answer of this question is c .. perpendicular lines

Answer 2

here is your answer mate.

option c is the correct answer they are perpendicular