Equations of Lines with Parallel and Perpendicular Slopes

Which statement correctly describes the graph?

• The lines are parallel because they have different slopes.

• The lines are NOT parallel because they have different y-intercepts.

• The lines are parallel since they have the same slope and different y-intercepts.

• The lines are perpendicular.

Write an equation of a line perpendicular to
y = 2/7x - 5 through (2, -3)

• y = -7/2x + 4

• y = -4x - 7/2

• y = 4x - 7/2

• y = 7/2x + 4

y = 5/7x +2
y = 5/7x - 30
These lines are...

• Parallel

• Perpendicular

• Neither

A line is perpendicular to    y = 2x - 7.
What is the slope of this line? 

• -2

• 1/2

• -1/2

• 2

A line that is parallel to this line would have what slope?
y= 2x - 7

• 2

• 1/2

• -1/2

• 7

If two lines are parallel, which of the following must be true?

• They have the same y-intercept.

• They intersect at one point.

• They have the same slope.

• They are perpendicular to each other.

Use the image to check your work for the previous question.

• I checked my work and I understand my mistake

• I checked my work and I do not understand my mistake

• I got the last question correct

• I did not check my work

Match the following to its perpendicular slope

• -4/5

• -2/3

• 5/7

• -7/5

• 3/2

• 5/4

• -4/15

• 15/4

Write the slope of the line that is parallel to the one graphed. Leave no spaces in your response

Mathematical Equivalence

ON