Parallel and Perpendicular Lines

Front

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

Back

-1/3

Front

What can be said about the slopes of parallel lines?

Back

They are identical.

Front

What can be said about the slopes of perpendicular lines?

Back

They are opposite reciprocals.

Front

If a line has the equation y = -2/3x + 2, what can be said about a line with the equation y = 3/2x + 9?

Back

They are perpendicular.

Front

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

Back

-1/2

Front

Define parallel lines in terms of their slopes.

Back

Parallel lines have the same slope.

Front

Define perpendicular lines in terms of their slopes.

Back

Perpendicular lines have slopes that are opposite reciprocals.

Front

If the slope of one line is 4, what is the slope of a line that is perpendicular to it?

Back

-1/4

Front

What is the slope of a line that is parallel to the line y = 5x + 3?

Back

5

Front

If two lines have slopes of 2 and -1/2, what can be said about their relationship?

Back

They are perpendicular.