Parallel and Perpendicular Slopes

If a line has a slope of 3/4 a line that is parallel has a slope of what?

What is the slope of the line parallel to a vertical line?

What is the slope of a line that is parallel to a horizontal line?

A line is perpendicular to    y = 2x - 7. What is the slope of this line? 

y = ^{- 2}/₃x + 2 y = ³/₂x + 9 These lines are...

y = ¹/₃x + 2 

y = 4x + 9

These lines are...

What is the slope of a line perpendicular to a line with slope -6?

What slope is parallel to:   m = ³/₄

What is the slope of a line that is perpendicular to a vertical line?

What is the slope of a line that is perpendicular to a horizontal line?

y = 3x +2 y = 3x - 3 These lines are...

-6x + y = 2

6x + y = 2

These lines are...

What is the slope of a line perpendicular to a line with a slope of 1?

y = -2/3x + 2 y = 3/2x + 9 These lines are...