Question

What is the equation of a line perpendicular to y=2.5x+5

Answer 1

y = -0.4 + c

Explanation:

y = mx + c (original form)

m ⊥ - 1/m

2.5 = 25/10

25/10 ⊥ -10/25

-10/25 = -0.4

y = -0.4x + c