Question #N621
The function $f(x) = 2x^2 + 3x - 1$ is defined for all real numbers. What is the value of $f(-2)$?
A. -9
B. -3
C. 3
D. 9
Correct Answer is: A
Substituting -2 for x in the function, we get: $f(-2) = 2(-2)^2 + 3(-2) - 1 = 2(4) - 6 - 1 = 8 - 6 - 1 = -9$.