Question

What is the slope of a line perpendicular to the line whose equation is x - y = -3.

Fully simplify your answer.

Answer 1

m2 = - 1

Explanation:

Subtract x from both sides of the equation

-y = - x - 3

Divide by - 1

-y/-1 = -x/-1 - 3/-1

y = x + 3

The slope of the line we were given is 1. The 1 is in front of the x

m1 * m2 = - 1

m1 = 1

1*m2 = - 1

m2 = - 1