Question

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. There is no mistake in the work.
B. Step 1
C. Step 2
D. Step 3
E. Step 4

Answer 1

Answer: The incorrect step is 2

Answer 2

Step 1, you must combine 3 and x together before attempting the exponent
In this equation, you can't simplify more than it is without knowing the value of x