Slopes of Parallel and Perpendicular Lines

Front

What are the slopes of parallel lines?

Back

Identical.

Front

What are the slopes of perpendicular lines?

Back

Opposite reciprocals.

Front

If the equation of a line is y = 5/7x + 2, what is the slope of a parallel line?

Back

5/7.

Front

What is the slope of a line that is perpendicular to y = 2x - 3?

Back

-1/2.

Front

If two lines have slopes of 3 and -1/3, what is their relationship?

Back

They are perpendicular.

Front

What is the slope of a line that is parallel to y = -4x + 1?

Back

-4.

Front

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

Back

Horizontal.

Front

What is the slope of a vertical line?

Back

Undefined.

Front

If the slope of one line is 2, what is the slope of a line that is perpendicular to it?

Back

-1/2.

Front

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

Back

They are identical.