3.6 Review

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

Are these lines parallel?

y = (-1/2)x + 1

y = (1/2)x - 5

• YES

• NO

Are these lines perpendicular?
y = 4x + 2
y = (-1/4)x + 12

• YES
• NO

Write an equation for a line perpendicular to
y = -5x + 3 through (-5, -4)

• y = -3x + 1/5
• y = -3x - 1/5
• y = 1/5x - 3
• y = -1/5x - 3

Write an equation of a line that passes through the point (5,-1) and is parallel to the line y = (-3/5)x -3

• y = (-3/5)x + 2
• y = (-3/5)x -2
• y = (3/5)x + 2
• y = (5/3) + 2