Identifying Parallel and Perpendicular Slopes

Front

Back

Slope.

Front

Slopes of perpendicular lines are...

Back

Opposite reciprocals.

Front

Back

m=3.

Front

What slope is parallel to m=3/4?

Back

3/4.

Front

The following represents slopes of two lines. Which answer choice describes the two lines? m=-1/3 and m=-1/3.

Back

Parallel.

Front

What is the slope of a line that is horizontal?

Back

0.

Front

What is the slope of a line that is vertical?

Back

Undefined.

Front

If two lines have slopes of 2 and -1/2, are they parallel, perpendicular, or neither?

Back

Perpendicular.

Front

What is the relationship between the slopes of parallel lines?

Back

They are equal.

Front

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

Back

-1/5.