5
QuizMultiple Choice

Equations of Exponential Functions

Question 5 • 25-26 CRX Math Models with Applications 7052A

You just obtained a credit card. You immediately purchase a digital camera for $160. Your credit limit is $4000. Let’s assume that you make no payments and purchase nothing more and there are no other fees. The monthly interest rate is 1.42%.What is the growth factor of your credit card balance?

Answer
A
0.0142
B
1.0142
C
14.2
D
1.42

Explanation

A monthly interest rate of 1.42% is 0.0142 as a decimal. The growth factor is 1 plus the interest rate: 1 + 0.0142 = 1.0142. Therefore, the correct choice is b, 1.0142.

AI-written and checked against the verified answer.

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