Question

Check my work?

Answer 1

A function is shown below:

f(x) = (1.07)x

What does the function represent?

Exponential growth of 7%

Exponential decay of 7%

Exponential growth of 93%

Exponential decay of 93%

I know the answer is either A or C but I don't know for sure.

Answer 2

in general
\[f(x) = (1 \pm r)^{x}\]
r is growth/decay rate
"+r" means growth
"-r" means decay

Answer 3

I know

Answer 4

But do you subtract 1 - 0.07 to get 93% or do you just get 7%?

Answer 5

i tell you in my post
1.07 = 1 + .07

"+" --> growth
r = .07 = 7%

Answer 6

Oh

Answer 7

I know that if the number in the parenthesis is over one than it is growth, but if it is lower than 1 it is a decay.

Answer 8

So the answer would be A?

Answer 9

correct

Answer 10

THanks