Question #N243
The function $f$ is defined by $f(x) = x^3 + 2x - 1$. What is the value of $f(-2)$?
A. -13
B. -9
C. 3
D. 13
Correct Answer is: A
Substituting $-2$ for $x$ into the equation for $f(x)$ gives us: $f(-2) = (-2)^3 + 2(-2) - 1$. Simplifying, we get: $f(-2) = -8 - 4 - 1$, or $f(-2) = -13$.