More Functions Review # 2

Write the function rule to represent the total cost, c, of PLAN A for m, months.

• c = 260m + 70

• c = 260+70m

• m = 70c + 260

• m = 70 + 260c

Write the function rule to represent the total cost, c, of PLAN B for m, months.

• c = 82m

• c = 82m + 1

• m = 82c

• m = 82c + 1

If Jacy plans to keep the phone for 24 months, which plan is cheaper?

THE NEXT SLIDE WILL SHOW YOU THE WORK!

• Plan A

• Plan B

• They are the same

Here is the work shown for the previous question.

• 👍

• 👎

Which plan has a proportional relationship? and Why?

• Plan A because the phone cost $260

  c = 70m + 260

• Plan B because you get the phone for free

  c = 82m

• Neither of them

• Both of them

Q.2A Find the slope for this relationship.

• 1/3

• 3

• -3

• -1/3

Q.2B Find the y-intercept.

• 14

• 17

• 3

• 8

Q.2C Write an equation in slope intercept form that represents this relationship.

• 3x+8

• 8x+3

• y=3x+8

• y=8x+43

• A

• B

• C

• D

• 10

• 15

• -5

• 5