Given the exponential function f(x) = -2(0.8)^x, what is the value of f(x) when x =0?

Question

Given the exponential function
`f(x) = -2(0.8)^x`, what is the value of f(x) when x =0?

Answer 1

Answer: -2

Work Shown:

`f(x) = -2(0.8)^x\\\\f(0) = -2(0.8)^0\\\\f(0) = -2(1)\\\\f(0) = -2\\\\`

In the third step, I used the idea that
`x^0 = 1` where x is any nonzero number.