Parallel, Perpendicular, or Neither Practice

Front

What are parallel lines?

Back

Lines that never intersect and have the same slope.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What does it mean if two lines are neither parallel nor perpendicular?

Back

They intersect at an angle that is not 90 degrees and are not equidistant.

Front

What is the slope of parallel lines?

Back

The slopes of parallel lines are the same.

Front

What is the slope of perpendicular lines?

Back

The slopes of perpendicular lines are opposite reciprocals.

Front

If line A has a slope of 2, what is the slope of a line parallel to it?

Back

2.

Front

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

Back

1/3.

Front

What is the slope of a line that is neither parallel nor perpendicular to a line with a slope of 5?

Back

Any slope that is not 5 or -1/5.

Front

How can you determine if two lines are parallel using their equations?

Back

If the coefficients of x in both equations are the same and the constant terms are different.

Front

How can you determine if two lines are perpendicular using their slopes?

Back

If the product of their slopes is -1.