Constant of Proportionality with Tables, Equations and Graphs

Which of the following equations does NOT match the table?

• y = 25/2x

• y = 2/25x

• y = 12.5x

• y = 12.5x + 0

Which equation matches the graph?

• y = 1/3x + 3

• y = 3x

• y = x +3

• y = 3x + 3

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 can you use to represent linear relationships?

• verbal descriptions

• equations

• graphs

• tables

• all of the above

What values would be in the next row?

• 11 & 16

• 10 & 22

• 10 & 20

• 11 & 22

Which equations below represent a proportional relationship? Select all that apply.

• c = 8.95t + 3

• c = 8.95t

Which of the following represents the constant of proportionality in the table?

• k = 85

• k = 95

• k = 190

• k = 125

The table below shows the relationship between the number of miles traveled, x, and the number of gallons of gas used, y. Which of the following equations best represents the relationship?

• 35 = 1x

• y = 35x

• y = 3.5x

The table shows the relationship between the number of miles traveled, y, and the number of gallons of gas used, x.

Which of the following equations best represents the relationship?

• y = 7.6x

• y = 0.013x

• y = 684x

• y = 76x