Parallel and Perpendicular Lines

Front

What is the slope of a line that is perpendicular to a line with slope m = 5/8?

Back

-8/5

Front

What is the slope of a line that is parallel to the line y = 2x - 7?

Back

2

Front

What can be said about the slopes of parallel lines?

Back

The slopes of parallel lines are identical.

Front

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

Back

4

Front

If two linear equations have slopes that are opposite reciprocals, what can be said about them?

Back

They are perpendicular.

Front

Define parallel lines in terms of their slopes.

Back

Parallel lines have identical slopes.

Front

Define perpendicular lines in terms of their slopes.

Back

Perpendicular lines have slopes that are opposite reciprocals.

Front

What is the slope of a line that is perpendicular to a line with slope m = -3?

Back

1/3

Front

If a line has a slope of 0, what type of line is it?

Back

It is a horizontal line.

Front

If a line has an undefined slope, what type of line is it?

Back

It is a vertical line.