Proportional Relationships from Tables Graphs and Equations

What is the constant of proportionality for the relationship on the graph?

• 3.5

• 7

• 8

• 28

Which equation matches the graph?

• y = 1/3x + 3

• y = 3x

• y = x +3

• y = 3x + 3

Which equation matches the table?

• y =4 x + 7

• y = 1/4x +11

• y = 4x -11

• y = 11x + 4

Sally will earn $30 for every 5 hours that she babysits. Which of the following equations can be used to represent the proportional relationship?

• y = 1/6x +30

• y = 6x

• y = 5x + 6

• y = 6x +5

Proportional relationships must go through the origin. (0,0)

• True

• False

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

Which graph shows a proportional relationship between x and y?

• F

• G

• H

• J

What can you use to represent linear relationships?

• verbal descriptions

• equations

• graphs

• tables

• all of the above

What is the unit rate for the table?

• $1 / 3 watermelon

• $3 / 1 watermelon

• 1/3 watermelon / pound

• $0.33 / 1 watermelon

Does the following table represent a proportional relationship? If so identify the constant of proportional and create an equation to represent it.

• Proportional; k = 1/40 pages per day; y=1/40x

• Proportional; k = 40 pages per day; y=40x

• Not Proportional

• Proportional; k = 40 days per pages; y=40x