Parallel and Perpendicular

Front

What is the slope of two parallel lines?

Back

The slope of two parallel lines is the same.

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line that is perpendicular to a line with slope m = 3?

Back

The slope of a line that is perpendicular to m = 3 is -1/3.

Tags

CCSS.8.EE.B.6

Front

What do two perpendicular lines have in common regarding their slopes?

Back

Two perpendicular lines have slopes that are opposite reciprocals.

Tags

CCSS.8.EE.B.6

Front

If two lines have slopes m = 1/5 and m = 1/5, what is their relationship?

Back

The lines are parallel.

Tags

CCSS.8.EE.B.6

Front

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

Back

The product of their slopes is -1.

Tags

CCSS.8.EE.B.6

Front

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

Back

It is a horizontal line.

Tags

CCSS.8.EE.B.5

Front

What type of line has an undefined slope?

Back

A vertical line.

Tags

CCSS.8.EE.B.5

Front

If two lines are parallel, what can be said about their angles?

Back

They will never intersect and have the same angle with the x-axis.

Tags

CCSS.8.G.A.5

Front

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

Back

If the slopes are opposite reciprocals, the lines are perpendicular.

Tags

CCSS.8.EE.B.6

Front

What is the slope of a line that is perpendicular to a line with slope m = -2?

Back

The slope of the perpendicular line is 1/2.

Tags

CCSS.8.EE.B.6