Slope Unit Rate

Find the constant of proportionality of the line.

• 1/2

• -1/2

• 2

• -2

• A
• B
• C
• D

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

At what rate did the rain fall?

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $100 is earned for every 2 hours worked

• $500 is earned for every 8 hours worked

• $200 is earned for every 3 hours worked

What does the constant tell you?

• It takes 9 hours to make $1

• You make $9 each hour

• It takes 9 hours to make $9

• You make $18 each hour

20 inches of snow fell over 5 hours. What equation represents the amount of snow(y) that fell per hour(x)

• y = 20x

• y = 5x

• y = 4x

• y = 10x

Are the two ratios proportional?

• YES

• NO

Does this graph represent a proportional relationship?  

• No, because it doesn't pass through the origin.

• Yes, because it doesn't pass through the origin.

• Yes, because it intersects the y axis.

• No, because it intersects the x axis.

Which graph is proportional?

• A

• B

• C and A

• All of the graphs are proportional