# How do you find the slope given y=-12?

Aug 8, 2015

The slope of $y = - 12$ is $0$

#### Explanation:

Since $y = - 12$ is a horizontal line, the value of $y$ does not change regardless of how much $x$ changes.

So the slope $= \left(\text{change in " y)/("change in "x}\right) = 0$

Alternately, you could re-write the given equation in slope-intercept form (that is $y = m x + b$)
to get
$\textcolor{w h i t e}{\text{XXXX}}$$y = 0 \cdot x + \left(- 12\right)$
to get a slope of $m = 0$