4th: Module 3 Quiz

Lupe’s heart beats 288 times in 4 minutes. Which equation represents

the number of times her heart beats per minute?

• y = 72x

• y = 288x

Prasert earns $9 an hour.

Which table represents this proportional relationship?

• A

• B

• C

• D

A factory produces widgets at a constant rate. After 4 hours, 3,120 widgets have been produced.

At what rate are the widgets being produced?

A full lake begins dropping at a constant rate. After 4 weeks it has dropped 3 feet.

What is the unit rate of change in the lake’s level compared to its full level?

What is the slope of the line?

• -2

• -1/2

• 3/6

• 1/2

Jim earns $41.25 in 5 hours. Susan earns $30.00 in 4 hours.

Pierre’s hourly rate is less than Jim’s, but more than Susan’s. What is his hourly rate?

• $6.50

• $7.75

• $7.35

• $8.25

Joelle kept track of her daily reading in the table shown below.

What is her fastest daily reading rate in pages per minute?

A wheelchair ramp rises 2.25 feet for every 25 feet of horizontal distance it covers.

What is the slope of the ramp?

What is the slope of the data in the table?

• 4

Find the slope of the line.