Constant of Proportionality Exit Slip

Kim went to the store and wanted to buy sweet potatoes. The 4 ½ lbs she bought cost $7.55. What is the unit rate for buying sweet potatoes at this store.

• $1.67

• $1.68

• $1.67777

• $1.60

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Is the set of ratios proportional?

• yes

• no

Tags

CCSS.7.RP.A.2A

Write an equation using the constant of proportionality.

• y = 3x

• y = 7x

• 2

• y = 2x

Tags

CCSS.7.RP.A.2C

Write an equation using the constant of proportionality.

• y = 2x

• y = 4x

• k = 4

• k = 2

Tags

CCSS.7.RP.A.2C

Using 12 boxes of nails a carpenter was able to finish 48 bird houses. Write an equation that can be used to express the relationship between the total number of birdhouses completed (t) and the boxes of nails (b) used.

• 4

• 48 = k12

• t = 4b

• t = 3b

Tags

CCSS.7.RP.A.2C

An ice cream truck driver determined he had made $10.44 after selling four ice cream bars (using the equation y=kx). How much would he have earned if he sold six bars?

• $2.61

• $10.44

• $15.66

• $15.60

Tags

CCSS.6.RP.A.3B