Question

Which lines are perpendicular? Line 1:y=3x+1 Line 2:y=2x-3 Line 3:3y+×=6 Line 4:y=1/3x-1​

Answer 1

Line 1 and 4

Explanation:

Perpendicular lines are easy to see once you realize that their slopes, the numbers in front of the x, are inverses. Line 1 and 4 are inverses.

1/3 and 3

Boom.