Parallel, Perpendicular, or Neither

Front

What are parallel lines?

Back

Lines that have the same slope and never intersect.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees) and have slopes that are opposite reciprocals.

Front

What does it mean for lines to be neither parallel nor perpendicular?

Back

Lines that intersect at an angle that is not 90 degrees and do not have the same slope.

Front

If two lines have slopes of 5/7, what can we say about them?

Back

They are parallel.

Front

What is the slope of a line perpendicular to a line with a slope of 2?

Back

The slope would be -1/2 (opposite reciprocal).

Front

If two lines have slopes of 3/4 and -4/3, what can we conclude?

Back

They are perpendicular.

Front

What is the relationship between the slopes of parallel lines?

Back

The slopes of parallel lines are identical.

Front

If the slopes of two lines are 1/2 and 1/2, what can we say about the lines?

Back

They are parallel.

Front

What is the slope of a line that is perpendicular to a line with a slope of 1?

Back

The slope would be -1 (opposite reciprocal).

Front

If two lines have slopes of 2 and 3, what can we conclude about them?

Back

They are neither parallel nor perpendicular.