If f ( x ) = 3x + 4, what is f (x +2)?

Nov 24, 2016

$f \left(x + 2\right) = 3 x + 10$

Explanation:

$f \left(x + 2\right) \text{ }$means replace all the $\text{ "xs" }$ with $\text{ } \left(x + 2\right)$

$f \left(x\right) = 3 x + 4$

$f \left(x + 2\right) = 3 \left(x + 2\right) + 4$

Now simplify

$f \left(x + 2\right) = 3 x + 6 + 4$

$f \left(x + 2\right) = 3 x + 10$