Question

Let f(x) = eˣ. Use a calculator to approximate the following. Round to the nearest hundredth. (If your calculator does not have an eˣ key, use e ≈ 2.7183). f( - 4) =

Answer 1

f(- 4) ≈ 0.02

Explanation:

to evaluate f(- 4) substitute x = - 4 into f(x)

given

f(x) =
`e^(x)` , then

f(- 4) =
`e^(-4)` ≈ 0.02 ( to the nearest hundredth )

Alternatively using e ≈ 2.7183

f(- 4) =
`2.7183^(-4)` ≈ 0.02 ( to the nearest hundredth )