Parallel, Perpendicular, or Neither?

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet. They are always the same distance apart and have the same slope.

Tags

CCSS.HSG.CO.A.1

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

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

Back

If two lines have the same slope, they are parallel.

Tags

CCSS.8.EE.B.6

Front

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

Back

If the product of the slopes of two lines is -1, then the lines are perpendicular.

Tags

CCSS.8.EE.B.6

Front

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

Back

If two lines intersect at an angle that is not 90 degrees and do not have the same slope, they are neither parallel nor perpendicular.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

Given points A(-1, 2) and B(2, 3), what is the slope of line AB?

Back

Tags

CCSS.8.EE.B.5

Front

Given points C(0, 0) and D(3, 1), what is the slope of line CD?

Back

Tags

CCSS.8.EE.B.5

Front

Are lines AB and CD parallel, perpendicular, or neither?

Back

Tags

CCSS.8.EE.B.6

Front

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

Back

Tags

CCSS.HSG.CO.C.11

Front

If two lines have slopes of 3 and -1, are they parallel, perpendicular, or neither?

Back

The lines are perpendicular because the product of their slopes is 3 * -1 = -3, which is not equal to -1.