Review: Unit 2

Kevin made a table to keep track of the hours he volunteers to submit with his scholarship application. Last month he provided 4.5 hours of volunteer work per week. How many hours did he have after 4 weeks.

• 18

• 9

• 4.5

• over 100

Jamie has been driving at a constant rate of speed for the last half hour. If Jamie is traveling at a speed of 65 miles per hour, which equation best represents the relationship between time in hours, t, and distance in miles, d?

• y = x

• y = 65x

• 65 = 1x

• y = 65 + x

The graph shows the amount of money Joe earns for each hour he works. What is the constant rate of change shown in the graph?

• 2

• .5

• 1/15

• 15

Mr. Johnston is filling his hot tub at a constant rate of 7 gallons per minute. Which graph represents the relationship between the time, x, and the water level, y?

• 
• 
• 
• 

Mrs. Lewis makes muffins for the school fundraiser. She uses the equation c = 0.85x to determine the cost, c, for x muffins. What part of this equation represents the constant rate at which the muffins are sold at the sale?

• c

• 0.85

• x

• none of the above

Which representation can be used to show the relationship between inches, y, and feet, x?

• 
• y= 12x

• There are 22 inches in 2 feet

• 

What is the constant rate of change shown by the table below?

• 1.5

• 3

• 5

• 1/1.5

Which representation can NOT be used to represent a car traveling 24 miles per hour?

• 
• The car went 120 miles in 5 hours

• 
• y = 24x

Choose the answer choice below that represents a person typing 25 words per minute?

• 
• y=5x

• In 6 hours, 125 words are typed

• 

Choose the option below that represents the distance a motorcycle travels while going 65 miles per hour?

• In 2 hours, the motorcycle travels 125 miles

• y= 60+5

• 
•