Question

Steven was given the function, f(x)=1.025^7t and asked to determine the rate of change and the type of exponential function. What is the best way for Steven to describe the function?

A. The rate of change is 0.025% and represents exponential decay.
B. The rate of change is 1.025% and represents exponential growth.
C. The rate of change is 2.5% and represents exponential growth.
D. The rate of change is -.025% and represents exponential decay.

Answer 1

Someone help!

Answer 2

Hi!!

Answer 3

Hi! Could you help??

Answer 4

sure

Answer 5

\[0.025\] is what number as a percent?

Answer 6

hint: move the decimal two places to the right !

Answer 7

2.5?

Answer 8

no not \(2.5?\) but \(2.5!!!\)

Answer 9

actually 2.5%

Answer 10

so \(2.5\%\)is the rate of increase, and of course it is growth because \(1.025>1\)

Answer 11

and you are done \(\color\magenta\heartsuit\)

Answer 12

So then it would be C?

Answer 13

always C!

Answer 14

Thank you :)

Answer 15

could you help with another one possibly?

Answer 16

The fee for the parking garage at the airport is $16 for the first day plus $4.50 for each additional day. Which equation represents the fee, f, for leaving your car at the airport for d days, where d is the number of days beyond the first day?

A. d = 16f + 4.5
B. f = 4.5d + 16
C. f = 16d + 4.5
D. d = 4.5d + 16