Parallel and Perpendicular Slopes

Front

What are parallel lines?

Back

Lines that have the same slope and never intersect.

Tags

CCSS.8.EE.B.5

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees) and have slopes that are negative reciprocals of each other.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What does 'm' represent in the slope-intercept form y=mx+b?

Back

The slope of the line.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What does 'b' represent in the slope-intercept form y=mx+b?

Back

The y-intercept of the line.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

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

Back

They are parallel.

Tags

CCSS.8.EE.B.6

Front

If the slope of one line is 2, what is the slope of a line perpendicular to it?

Back

-1/2 (the negative reciprocal of 2).

Tags

CCSS.8.EE.B.6

Front

What is the slope of the line represented by the equation y=4x+3?

Back

4.

Tags

CCSS.8.EE.B.5

Front

Determine if the lines represented by y=3x+2 and y=3x-3 are parallel, perpendicular, or neither.

Back

They are parallel.

Tags

CCSS.8.EE.B.6

Front

Determine if the lines represented by -6x + y = 2 and 6x + y = 2 are parallel, perpendicular, or neither.

Back

They are neither.

Tags

CCSS.8.EE.B.6

Front

Which of the following lines is parallel to y = x/2 + 10? y = x/2 - 5, y = 2x, y = -2x - 15, None of them.

Back

y = x/2 - 5.