Unit 2 Review

Snow is falling steadily in Syracuse, New York. After two hours, 4 inches of snow has fallen. If it continues to snow at the same rate, how many inches of snow would you expect after 6.5 hours? Use the table if you need help.

• 2

• 3

• 8.5

• 13

Tags

CCSS.6.RP.A.3B

What equation gives the amount of snow that has fallen after x hours at the proportional rate shown in the table?

•  $y\ =\ \frac{x}{2}$  

•  $y=x+2$  

•  $y=2x$  

•  $y=x^2$  

Tags

CCSS.7.RP.A.2B

An albatross is a large bird that can fly 400 kilometers in 8 hours at a constant speed. Using d for distance traveled in kilometers and t for number of hours, which of the following equations represents this situation?

•  $t=50d$  

•  $d=50t$  

•  $\frac{400}{d}=t$  

•  $8d=50t$  

Tags

CCSS.6.RP.A.3B

Based on the recipe, Eloise knows that 5 servings of granola has 1,750 calories. If she eats 2 servings of granola, how many calories does she eat? (make a T-Chart if you're stuck)

• 700 calories

• 875 calories

• 3,500 calories

• 4,375 calories

Tags

CCSS.6.RP.A.3B

Based on the recipe, Elena knows that 5 servings of granola (s) has 1,750 calories (c). Which equations represents the relationship between the number of calories and the number of servings of granola?  Select TWO.

•  $c\ =\ 350s$  

•  $s=350c$  

•  $c=\frac{1}{350}s$  

•  $s=\frac{1}{350}c$  

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

In the table, what is the constant of proportionality that relates pounds of apples to the cost of apples?

• $0.53 per pound

• $1.88 per pound

• $3.76 per pound

• $0.88 per pound

Tags

CCSS.7.RP.A.2B

According to the information in the table, how long will it take to fill the tank with 40 gallons?

• 2.4 minutes

• 4.8 minutes

• 8.2 minutes

• 18 minutes

• 25 minutes

Tags

CCSS.6.RP.A.3B

An equation that represents a specific relationship is

 $y=\frac{3}{2}x$  What is true about this equation?  Select TWO answers.

• If graphed, this equation would form a straight line that passes through the origin

• This equation is not a proportional

• The constant of proportionality of this equation if 1.5

• If graphed, this equation would form a straight line that would not pass through the origin

Tags

CCSS.7.RP.A.2D

Select all of the equations that represent a proportional relationship.

• $y=\frac{x}{3}$

• $y=3x$

• $y=x+3$

• $y=3x+1$

• $y=3\frac{1}{3}x$

Tags

CCSS.7.RP.A.2C

Select all of the graphs that represent a proportional relationship. Select THREE answers.

• 
• 
• 
• 

Tags

CCSS.7.RP.A.2D