FOA 4.2E Slopes of Parallel & Perpendicular Lines

Front

What is the slope of a line parallel to m = 3/4?

Back

The slope is 3/4.

Front

What can be said about the slopes of parallel lines?

Back

The slopes of parallel lines are the same.

Front

What can be said about the slopes of perpendicular lines?

Back

The slopes of perpendicular lines are opposite reciprocals.

Front

If two lines are perpendicular, what is true about their slopes?

Back

Their slopes multiply to -1.

Front

What is the slope of a line parallel to m = 4?

Back

The slope is 4.

Front

If m1 = 2, what is the slope of a line perpendicular to it?

Back

The slope is -1/2.

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 opposite reciprocals.

Front

If a line has a slope of -3, what is the slope of a line parallel to it?

Back

The slope is -3.

Front

If a line has a slope of 1/5, what is the slope of a line perpendicular to it?

Back

The slope is -5.