Proportional Graphs Review

The graph shows the time it takes Mrs. Smith to make birthday cupcakes. Mrs. Smith wants to plot a point on the graph to represent the unit rate. What are the coordinates of that point?

• (1, 3)

• (3, 1)

• (2, 6)

• (0, 0)

This graph represents a map scale of inches to miles. what does the point (0, 0) mean?

• The ordered pair (0, 0) represents the fact that 1 inch is equal to 1 mile.

• The ordered pair (0, 0) represents the fact that 0 inches is equal to 0 miles.

• The ordered pair (0, 0) represents the unit rate of inches per mile.

• The ordered pair (0, 0) represents the unit rate of miles per inches.

Based on the graph, Which of the following statements is TRUE?

• I drove 80 miles every 4 hours

• I drove 160 miles in an hour

• I drove 80 miles every 2 hours

• I drove 240 miles in 4 hours

Using the graph above, determine the constant of proportionality.

• k = 0

• k = 1

• k = 3

• k = 6

What does the point (2, 94) represent in this situation?

• Every week, they earn $94.

• After 94 weeks, they save $2.

• After 1 week, they save $47.

• After 2 weeks, they save $94.

What is the false statement?

• 1 pound of bananas cost $2.75

• 3 pounds of bananas cost $8.25

• The point (2, 5.5) is on the graph of the proportional relationship

• The point (5, 13.50) is on the graph of the proportional relationship

In the equation y = 14x, what is the constant of proportionality?

• y

• x

• 14

• y=14

If the constant of proportionality is 7, which of the following is the correct proportional equation?

• y=7k

• y=k7

• y=kx

• y=7x

What is the unit rate/constant of proportionality?

• 80 miles in 1 hours

• 20 miles in 1 hours

• 40 miles in 1 hours

• 160 miles in 1 hours

Write the equation for the table.

• x = 5y

• y = 5x

• y = 4x + 1

• y = x + 5