Question

what is the value of f(x)=2(0.75)^x when x=3?

Answer 1

First, some preliminaries:

What is 2^3?

What is 10^3?

what is 0.75^3?

Answer 2

2^3=8
10^3= 1000
0.75^3= .42

Answer 3

Great. Look at the original problem. Note how I let x=3.

What is 2(2)^3?
what is 2(10)^3?
What is 2(0.75)^3?

Make use of your previous results. No need to start over again.

Answer 4

2(2)^3= 16
2(10)^3 = `2000
2(0.75) ^3 = .84

Answer 5

where did we get 10 from?