Algebra Blitz

Which situation could be modeled by using an exponential function?

• A gym charges a membership fee of $10.00 down and $10.00 per month.

• A cab company charges $2.50 initially and $3.00 per mile.

• A restaurant employee earns $12.50 per hour.

• A $12,000 car depreciates 15% per year.

A shipping company started with 40 employees. The number of employees at the shopping company increases at a rate of 7.5% each year.

Which function can be used to model the number of employees, f(x), at the shipping company after x years.

• 5

• 14

• 8

• -16

• 18

• 6

e

f

+1

+2

-5

+7

+5

+12

-1

-7

• -3, 2, 7, 12

• 5, 2, -1, -4

• -3, -15, -75, -375

• 5, 8, 11, 14

• F

• G

• H

• J

• F

• G

• H

• J

• A

• B

• C

• D

• F

• G

• H

• J

• F

• G

• H

• J