Parallel and Perpendicular Slopes

Are the equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Are the equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Are the equations parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Identify the slope of a line parallel to the one graphed.

• -7/3

• 3/7

• -3/7

• 7/3

• -3

• 1

• -1

• 3

Choose the best answer to fill in the blanks.

Parallel lines always have the ​ (a)   slope.

Perpendicular lines have slopes that are ​ (b)   .

The product of perpendicular slopes always equals ​ (c)  

• same

• negative reciprocals

• -1

• reciprocals

• 1

• different

Are the slopes below parallel, perpendicular, or neither?

• Parallel

• Perpendicular

• Neither

Which of the following slopes represents a line that is perpendicular to the line given by:

• m = -3/2

• m = 2/3

• m = 1/2

• m = -1.5

Slopes of parallel lines are...

• opposite reciprocals.

• opposites.

• the same.

• always 7.

Slopes of perpendicular lines are...

• opposite reciprocals.

• opposites.

• identical.

• always 7.