Originally Posted by

**Mariolee** YAY, Mariolee's making another function thread because he's an idito when it comes to calculus. Truth be told, I haven't taken Pre-Calc or Calc, so that's the reason I don't get most of this I suppose.

So here's another question for you guys:

A function is described by the equation f (x) = x2 + 5. The replacement set for the independent variable is {1, 5, 7, 12}. Which of the following is contained in the corresponding set for the dependent variable?

A. 0

B. 6

C. 7

D. 15

Easy explanation please.