Linear Reps

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1.

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• Carolyn was given 200 stamps, and she will buy 50 stamps every month.

• Carolyn was given 180 stamps, and she will buy 70 stamps every month.

• Carolyn was given 180 stamps, and she will buy 50 stamps every month.

• Carolyn was given 200 stamps, and she will buy 70 stamps every month.

• A

• B

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The diagram shows a linear function of g. What is the value of k.

• 5

• 4

• 7

• 8

Fill in the table matching the rule that was described in the word problem.

a

b

c

d

e

11

9

3

5

7

Answer explanation

You can create an equation with the information given in the word problem to help you complete the table. The equation would be y=2x+1. Substitute the x-values given to you and solve for y.

A bathtub drains at a rate of 3 gallons per minute. The function is graphed on the left.

x represents the number of ​ (a)  

y represents the number of ​ (b)   ​

• minutes

• gallons of water remaining in the bathtub

Fingernails grow at a rate of 3.5 mm (y) per month (x). How long would your fingernails grow in 3 months?

• 10.5 mm

• 3.5 mm

• 7 mm

• 14 mm