Question

Nnie is renting an apartment and sees in the rental agreement that each year they will raise the rent by 5%. The rent when she first signs the agreement is $850. What function best models the amount of rent she will have to pay in each future year?

A.) y = 50x + 850
B.) y = 850x + 50
C.) y = 850(1.05)^x
D.) y = 850(0.05)^x

Answer 1

C.) y = 850(1.05)^x

Explanation:

This relationship is best modeled by an exponential function. Each year the amount is going up so the best function to model this situation is y = 850(1.05)x where 850 is the initial rent and 1.05 represents that it increases by 5% each year.

Answer 2

C.) y = 850(1.05)^x
It should be exponential grow.