Equations of Parallel & Perpendicular Lines

What slope is parallel to:  
m = 4

• 4
• -1/4
• -4
• 1/4

y = 5/7x +2

y = 5/7x - 30

These lines are...

• Parallel

• Perpendicular

• Neither

Are these lines parallel?
y = 12x + 4
y = 12x +14

• YES
• NO

Are these lines parallel?

y = (-1/2)x + 1

y = (1/2)x - 5

• YES

• NO

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

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

• YES
• NO

Are these lines perpendicular?
y = (1/2)x + 2
y = -2x + 13

• YES
• NO

Write an equation of a line that passes through the point (-9,2) and is perpendicular to the line y = 3x - 12

• y = (-1/3)x - 1
• y = (1/3)x - 2
• y = -3x + 12
• y = 3x - 1

Write an equation of a line that passes through the point (7,10) and is perpendicular to the line y = (1/2)x - 9

• y = -2x - 24
• y = -2x + 12
• y = -2x  + 24
• y = (1/2)x - 12

What slope is perpendicular to:  
m = 5/8

• -5/8
• 5/8
• -8/5
• 8/5