Slope/Proportional Relationships

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

Dan charges $15 per hour for walking dogs. What is the missing number in the table?

• 50

• 60

• 75

• 82.5

Which graph is non-proportional?

• A

• B

• C

• D

Which color car represents a proportional relationship?

• Red car

• White car

• Both cars

• None of the cars

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

Does the function graphed model a proportional relationship?

• yes - because it has a constant rate of change

• no - because it does not have a constant rate of change

• yes - because it does not go through the origin

• no - because it does not go through the origin

Does this graph represent a proportional relationship?

• Yes

• No

Which equation represents a proportional relationship?

• y = x + 3

• y = x - 9

• y = 7x

• y = 4x + 1

Find the slope

• -5/3

• -3/5

• 5/3

• 3/5

Find the slope of the line that passes through:
(10, 1) and (5, 2)

• 1/5

• -1/5

• 5

• -5