Review Parallel and Perpendicular

Which figure shows a set of perpendicular lines?

• Figure 1

• Figure 2

• Figure 3

• Figure 4

Slopes of parallel lines are...

• opposite reciprocals.

• opposites.

• the same.

• always 7.

Slopes of perpendicular lines are...

• opposite reciprocals.

• opposites.

• identical.

• always 7.

What slope is parallel to:  
m = 3/4

• 4/3

• 3/4

• -3/4

• -4/3

What slope is parallel to:  
m = 4

• 4

• -1/4

• -4

• 1/4

What is the slope of a line perpendicular to 5?

• 5

• 1/5

• -1/5

• -5

What is the slope of a line perpendicular to -10/3

• -10/3

• 10/3

• 3/10

• -3/10

Choose the most precise answer: These roads are

• Intersecting

• Perpendicular

• Parallel

Choose the most precise answer: These streets are

• Parallel

• Perpendicular

• Intersecting

• Parallel

• Perpendicular

• Intersecting