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 perpendicular to a line with slope m = 3?

Back

-1/3

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

Are the two linear equations y = 2x + 3 and y = 2x - 5 parallel, perpendicular, or neither?

Back

Parallel

Front

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

Back

-1/4

Front

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

Back

Perpendicular

Front

What is the relationship between the slopes of two lines that are parallel?

Back

Their slopes are equal.

Front

What is the relationship between the slopes of two lines that are perpendicular?

Back

Their slopes are opposite reciprocals.

Front

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

Back

1/3