PARALLEL AND PERPENDICULAR LINES AND SLOPE

Front

What is the slope of a line parallel to m = 3/4?

Back

3/4

Front

Are the lines with slopes 2/3 and -3/2 perpendicular? How do you know?

Back

Yes, their slopes are opposite reciprocals.

Front

Slopes of parallel lines are ____________?

Back

equal

Front

If two lines have the same slope, what can we say about them?

Back

They are parallel.

Front

What is the slope of a line perpendicular to m = 5?

Back

-1/5

Front

If line 1 has a slope of 1/2 and line 2 has a slope of -2, are they perpendicular?

Back

Yes, their slopes are opposite reciprocals.

Front

What is the slope of a line that is horizontal?

Back

0

Front

What is the slope of a line that is vertical?

Back

Undefined

Front

If two lines are neither parallel nor perpendicular, what can we say about their slopes?

Back

They are neither equal nor opposite reciprocals.

Front

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

Back

Their slopes are opposite reciprocals.