Question

The function f is defined on the real numbers by f(x) = 2 + x - x^2 What is the value of f(-3)?



a. -10

b. -4

c. 8

d. 14

Answer 1

2 + (- 3) - (-3^2)
2 - 3 - 9
2 - 12
- 10

Answer 2

To evaluate f(-3), merely substitute (-3) for every occurrence of x in the original equation.

Answer 3

exactly ^^