Question #N851
A function is defined by $f(x) = \frac{x^2}{2} + 3x - 5$. What is the value of $f(-2)$?
A. -9
B. -7
C. -5
D. -3
Correct Answer is: A
To find the value of f(-2), we substitute -2 for x in the function's formula: $f(-2) = \frac{(-2)^2}{2} + 3(-2) - 5$. Simplifying, we get $f(-2) = \frac{4}{2} - 6 - 5$, or $f(-2) = 2 - 6 - 5$, which equals -9.