Slopes of Parallel and Perpendicular Lines

Front

What is the slope of a line perpendicular to -10/3?

Back

3/10

Front

What is the slope of a line with a positive inclination?

Back

Positive slope means the line rises from left to right.

Front

If two lines have slopes m = 7 and m = -7, how are they related?

Back

Neither parallel nor perpendicular.

Front

What slope is parallel to m = 4?

Back

4

Front

Which figure shows a set of perpendicular lines?

Back

Figure 2

Front

What is the definition of slope?

Back

Slope is the measure of the steepness of a line, calculated as the rise over run.

Front

What is the slope of a line parallel to a line with slope 2?

Back

2

Front

If two lines are perpendicular, what is the relationship between their slopes?

Back

The product of their slopes is -1.

Front

What is the slope of a horizontal line?

Back

0

Front

What is the slope of a vertical line?

Back

Undefined