Question

1. If the function f can be expressed with

the equation f(x) = -x2 – 3x - 10, find the
value of f(-2)

Answer 1

f(-2) = -8

Explanation:

Plug in x=-2 into the function:

f(x) = -x² - 3x - 10

f(-2) = -(-2)² - 3(-2) - 10

f(-2) = -4 - (-6) - 10

f(-2) = -4 + 6 - 10

f(-2) = 2 - 10

f(-2) = -8