# Given f(x)=-3(1-x) what is the value of f(-6)?

Nov 28, 2016

$f \left(- 6\right) = - 21$

#### Explanation:

To evaluate this function for $- 6$ you need to substitute $- 6$ for $x$ and then perform the necessary mathematics.

$f \left(- 6\right) = - 3 \cdot \left(1 - \left(- 6\right)\right)$

$f \left(- 6\right) = - 3 \cdot \left(1 + 6\right)$

$f \left(- 6\right) = - 3 \cdot 7$

$f \left(- 6\right) = - 21$