Proportionality from Graphs, Tables and Equations

The table represents some points on a linear function. Which situation can be modeled by this function?

• The cost of buying 1 pair of shoes for $84.

• The cost of using 1 gallon of gas for $76.

• The cost of buying 5 pairs of shoes for $76.

• The cost of purchasing 11 pairs of shoes for $228.

Jermaine plots the points (0, 0) and (4, 11) on a graph to represent a proportional relationship. Which of the following equations represents the relationship between the x and y-values?

What number is missing in the table?

What is the constant of proportionality?

Kenny is practicing for at typing test. The number of words he can type is proportional to the number of minutes he types. If Kenny types for 280 words, how many minutes did it take him?

Kenny is practicing for at typing test. The number of words he can type is proportional to the number of minutes he types. If Kenny types for 18 minutes, how many words will he be able to type?

Based on the information in the table, what is the constant of proportionality?

• k = 8

• k = 20

• k = 5

• k = 10

Which of the following tables best represents the relationship between p and f in the equation p = 3.5f ?

• A and C

• B and D

• C and D

• B and C

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked

  is the unit rate

• $62.50 is earned for every hour worked

• $300 is earned after working 4 hours

Which situation is best described by the graph shown?

• Brooklyn purchases Skittles for $0.75 per bag.

• Jessica buys Snickers bars for $1.50 each

• Pat pays $0.50 per ride at the fair.

• Fran purchases scrunchies for $3.00 each.