Proportions Practice (Direct Variation)

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

The cost of gas varies directly with the amount of gallons of gas purchased. The cost of 120 gallons of gas costs $300. What is the cost of purchasing 1 gallon of gas?

• $1.25

• $0.40

• $2.50

• $3.00

Tags

CCSS.7.RP.A.2B

What makes a graph proportional?

• Straight Line

• Curvy Line

• Goes through the origin (0,0)

• The slope is 0

Tags

CCSS.8.EE.B.5

The distance walked varies directly with the time it takes to travel a path. If a person walks 4.5 miles and it takes them 72 minutes, how many miles can they walk in 128 minutes.

• 8 miles

• 16 miles

• 1 mile

• 20 miles

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

• y

• x

• 14

• 14x

Tags

CCSS.7.RP.A.2B

A car travels 90 miles in 2 hours. What is the constant of proportionality?

• 45 miles

• 90 miles

• 180 miles

• 2 miles

Tags

CCSS.7.RP.A.2B

Do x and y show direct variation?

y = 5x

• Yes

• No

Do x and y show direct variation?

y = 2x + 3

• Yes

• No

The letter k in the equation y = kx stands for

• the constant of proportionality

• king

• queen

Tags

CCSS.7.RP.A.2B

The Williams family bought four concert tickets for $252. What is the price per ticket?

• $60

• $6.30

• $62

• $63

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2