Question

PLEASE HELP ASAP

The function f(x) = 800(1.09)3x shows the growth due to interest that Jim earns on an investment. The steps to calculate an equivalent function are shown below:

[Step 1] f(x) = 800(1.09)3x
[Step 2] f(x) = 800(1.093)x
[Step 3] f(x) = 800(1.09 ⋅ 3)x
[Step 4] f(x) = 800(3.27)x

Which of the following is the first incorrect step?
A. Step 1
B. Step 2
C. Step 3
D. Step 4

Answer 1

Answer:

The in the calculation the step 3 is the first incorrect step.

Step-by-step explanation:

The function $f(x) = 800(1.09)^{3x}$ shows the growth due to interest that Jim earns on an investment.

To get an equivalent function we are given the following steps:

[Step 1] $f(x) = 800(1.09)^{3x}$

[Step 2] $f(x) = 800(1.09^{3}) ^{x}$

[Step 3] $f(x) = 800(1.09 \times 3)^{x}$

[Step 4] $f(x) = 800(3.27)^{x}$

The in the calculation the step 3 is the first incorrect step.

And this will be $1.09^{3} = (1.09)^{3} = 1.295 \neq   3.27$ (Answer)

Answer 2

Step 3

It is multiplying three instead of doing 9x9x9 she did 9x3