Question

F(x) = -x - 3, find f(-2).

Answer 1

f(-2) = -1

Explanation:

Pre-Solving

We are given the following function:

f(x) = -x - 3

We want to find the value of f(-2). This is the value of the function when x is equal to -2.

Solving

Subsitute -2 as x in f(x).

f(x) = -x - 3

f(-2) = -(-2) - 3

f(-2) = 2 - 3

f(-2) = -1