# How do you rewrite  x + 3y = -36 in function form?

Sep 30, 2016

$f \left(x\right) = - \left(\frac{x}{3} + 12\right)$

#### Explanation:

In function form $y$ is replaced by $f \left(x\right)$ (or something similar)
and expressed as $f \left(x\right) = \text{an expression in terms of } x$

$x + 3 y = - 36$

$\rightarrow 3 y = - x - 36$

$\rightarrow y = - \left(\frac{x}{3} + 12\right)$

$\rightarrow f \left(x\right) = - \left(\frac{x}{3} + 12\right)$