Unit 4 Review

Mrs. Truesdell wrote this sequence of numbers on the board. Which of the following expressions could be used to determine the next number in this sequence?

• $\frac{2}{n}$

• 2n

• 2+n

• n-2

Tags

CCSS.HSF.BF.A.2

Which table(s) of data illustrate(s) a constant rate of change?

• I and II

• II and III

• II only

• III only

Tags

CCSS.HSF-LE.A.1B

An air conditioning technician charged Robert $77.25 to repair his air conditioning system after 3 hours of work. The technician charged the same rate for each hour of work. Which diagram represents the constant rate of change for this situation?

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

What is the constant rate of change in this situation in miles per hour?

• 132 miles per hour

• 60 miles per hour

• 55 miles per hour

• 0.92 miles per hour

Tags

CCSS.HSF-LE.A.1B

A snail can crawl at a rate of 6 cm in 0.75 minutes. Which represents the constant rate of change of the snail’s crawl?

• The snail’s speed is 6.25 cm per minute.

• 
• d = 0.75t, where t represents the time in minutes and d represents the distance in centimeters.

• 

Tags

CCSS.HSF-LE.A.1B

A certain cookie recipe calls for 2 cups of flour to make one batch of cookies. Which graph best represents the relationship between the amount of flour and the number of batches of cookies that can be made using this recipe?

• 
• 
• 
• 

Tags

CCSS.8.EE.B.5

A person can drive 200 miles in 4 hours. What is the constant of proportionality?

• 40

• 800

• 50

• 250

Tags

CCSS.7.RP.A.2B

Stop and Shop sells 8 cases of soda for $27.60. Which describes the constant of proportionality?

• $3.45

• $3.54

• $19.60

• $3.49

Tags

CCSS.7.RP.A.2B

A helium balloon was released in a gymnasium and rose through the air with a constant of proportionality of  

 $\frac{15}{2}$  feet per second.  Which representation shows this relationship?

• 
•  y = 15x + 2

• 
• 

Tags

CCSS.8.EE.B.5

George is at a motorcycle auction and is going to buy a new bike. A brand new bike is priced at of x  $\frac{3}{4}$  the original price, with an additional discount of $600. Which of the following equations represents y, the price George paid for the motorcycle?

•  $y=\frac{3}{4}x-600$  

•  $y=\frac{3}{4}x+600$  

•  $x=\frac{3}{4}y-600$  

•  $x=\frac{3}{4}y+600$  

Tags

CCSS.6.EE.C.9