Question

What is the slope of a line perpendicular to the line whose equation is x-y=5 fully simplify your answer.

Answer 1

Given:

$x-y=5$$x-5=y$$y=x-5$

The general equation is

$y=mx+c$$m=1$

The slope of a line perpendicular to the line whose equation x-y=5 is

$\text{slope}=-1$