Parallel and perpendicular lines

Front

What slope is parallel to: m = 4

Back

4

Front

What slope is perpendicular to:  
m = 5/8

Back

-8/5

Front

What slope is perpendicular to:  
m = 3

Back

-1/3

Front

y = 6x + 2
y = -6x + 2
These lines are...

Back

Neither

Front

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

Back

Perpendicular

Front

y = 3/2x + 2
y = 2/3x + 6
These lines are...

Back

Neither

Front

A line is parallel to y = 2x - 7. What is its slope?

Back

2

Front

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

Back

-1/2

Front

Find the slope of the line.

Back

2/1

Front

What direction is an undefined slope?

Back

vertical