Parallel/Perpendicular Lines Review

What is the equation of a line parallel to the following line that passes through the given point? 
y = -4x + 6      (2, -1)

• y = 1/4x + 6
• y = -4x + 7
• y = -4x + 2
• y = 1/4x -1 

What is the equation of a line that is perpendicular to this line and goes through the given point?
y = 3x + 2      (3, -4)

• y = 3x - 2
• y = -1/3x - 5
• y = 3x - 4
• y = -1/3x - 3

Are these two lines parallel, perpendicular or neither?
y = -1/3x - 5
y = 1/3x + 2

• Parallel
• Perpendicular
• Neither

Parallel lines have __________ slopes

• Equal
• Opposite
• Reciprocal 
• Total

Slopes of perpendicular lines are...

• opposite reciprocals.
• opposites.
• identical.
• always 7.

What is the slope of a line perpendicular to a line with slope ^-6/₅ ?

• ^-6/₅
• ^-5/6
• ⁵/₆
• ^-4/₃

Find the slopes to determine if Line 1 and Line 2 are parallel, perpendicular, or neither.

Line 1: (15, 20), (17, 18)

Line 2: (-22, -18), (-20, -16)

The two lines are _____________________.

• Parallel

• Perpendicular

• Neither

Use the slopes to determine if Line 1 and Line 2 are parallel, perpendicular, or neither.

Line 1: $\left(-1,\ 2\right),\ \left(2,\ 3\right)$  
Line 2:  $\left(0,\ 0\right),\ \left(3,\ 1\right)$  
These two lines are ______________________

• Parallel

• Perendicular

• Neither

Write the equation of a line PARALLEL to y = 2x + 3 that passes through the point (3, 1).

• $y=2x\ -3$

• $y=2x-5$

• $y=2x\ +\ 1$

• $y=-\frac{1}{2}x+\frac{5}{2}$

What slope is parallel to:  
m = 3/4

• 4/3
• 3/4
• -3/4
• -4/3