# How do you find k(-10) given k(x)=-x+1?

Jul 2, 2017

$k \left(- 10\right) = 11$

#### Explanation:

$k \left(- 10\right)$ means what is the value of $k$ when $x$ is $- 10$. We can find the value of $k$ by substituting $- 10$ for $x$ in $k \left(x\right) = - x + 1$

$\therefore k \left(- 10\right) = - \left(- 10\right) + 1$

$k \left(- 10\right) = 10 + 1$

$k \left(- 10\right) = 11 \leftarrow$ This means that when $x$ is $- 10$, $k$ is $11$