Question

A function is given.

Answer 1

Answer:

f(- 2) = - 1

Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x), that is

f(- 2) = 2(- 2) + 3 = - 4 + 3 = - 1

For $2^{x}$ + 3, then

f(- 2) = $2^{-2}$ + 3 = $\frac{1}{4}$ + 3 = 3.25