Parallel and Perpendicular Lines Concepts

Choose the most precise answer: These streets are

• Parallel

• Perpendicular

• Intersecting

What slope is parallel to:  
m = 4

• 4

• -1/4

• -4

• 1/4

What slope is perpendicular to:  
m = 5/8

• -5/8

• 5/8

• -8/5

• 8/5

What slope is perpendicular to:  
m = 3

• -3

• -1/3

• 1/3

• 3

A line is parallel to   y = 2x - 7.
What is it's slope?

• -2

• 1/2

• -1/2

• 2

Determine the equation of a line perpendicular to y=-3x-2 and going through the point (9, 2), in slope-intercept form.

Slopes of parallel lines are...

• opposite reciprocals

• opposites

• identical

• reciprocals

Slopes of perpendicular lines are...

• opposite reciprocals

• opposites

• identical

• reciprocals

What slope is parallel to:

m = 4

• 4

• -1/4

• -4

• 1/4

What slope is perpendicular to:

m = -3

• -3

• -1/3

• 1/3

• 3