Question

What is the slope of a line parallel to the line whose equation is y - x = 5?

-1
1
5

Answer 1

rearranging
y = x + 5

compare this with y = mx + c where m=slope of the line

y = x + 5
y = mx + c

m = 1

slope = 1

Answer 2

First rearrange the equation into slope-intercept format (y=mx+b) so that you can identify the slope of the given line. Parallel lines always have the same slope.