# If f(x)=-2x-3 and g(x)=x^2+5x, what is f(6)?

Mar 24, 2018

$- 15$

#### Explanation:

We are given: $f \left(x\right) = - 2 x - 3$

So, $f \left(6\right)$ would just mean plugging in $x = 6$ into the function.

$\therefore f \left(6\right) = - 2 \cdot 6 - 3$

$= - 12 - 3$

$= - 15$