Parallel& perpendicular lines -Slope & Equations

If two lines are parallel their slopes are  ____________

• the same.
• negative reciprocals of each other.

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

If two lines are perpendicular to each other their slopes are ____________

• the same.

• negative reciprocals of each other.

Which figure shows a set of perpendicular lines?

• Figure 1
• Figure 2
• Figure 3
• Figure 4

Which figure shows a set of parallel lines?

• Figure 1
• Figure 2
• Figure 3
• Figure 4

Which line is perpendicular to

y = 2x - 7 ?

• y = -2x + 8

• y = ¹/₂x - 7

• y = ^-1/₂x + 2

• y = 2x - 3

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

• ^-6/₅
• ^-5/6
• ⁵/₆
• ^-4/₃

Which of the following lines is PARALLEL to the graph of y = -6x + 3 and goes through the point (-1,4)?

• y=1/6x +25/6

• y = 1/6x + 4

• y = -6x - 2

• y = -6x + 4

Determine the equation of the line that is PERPENDICULAR to the line 3x + 12y = 1 and contains the point (-2, 6).

• y = 4x + 6

• y = 4x + 14

• y = 3x + 12

• y = -1/4x + 11/2