Parallel and Perpendicular Slopes

Front

What is the slope of a line parallel to y = 2x + 4?

Back

2

Front

What is the slope of a line perpendicular to y = 2x + 4?

Back

-1/2

Front

If m = 7 and m = -7, what describes the two lines?

Back

Neither

Front

What is the slope of a line perpendicular to y = ½x + 4?

Back

-2

Front

True or False: Parallel lines have the same slope.

Back

True

Front

What is the definition of parallel lines in terms of slope?

Back

Parallel lines have the same slope.

Front

What is the definition of perpendicular lines in terms of slope?

Back

Perpendicular lines have slopes that are negative reciprocals of each other.

Front

If the slope of one line is 3, what is the slope of a line perpendicular to it?

Back

-1/3

Front

What is the slope of a line parallel to y = -4x + 1?

Back

-4

Front

If two lines have slopes of 5 and -1/5, what can be said about their relationship?

Back

They are perpendicular.