Parallel & Perpendicular Lines

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

Parallel lines cross one another, or intersect.

• true

• false