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

1 Answer

Aug 8, 2015

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

Explanation:

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

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

Alternately, you could re-write the given equation in slope-intercept form (that is $y = m x + b$ $y = mx+b$ )
to get
$XXXX$ $color(white)("XXXX")$ $y = 0 \cdot x + (- 12)$ $y = 0*x + (-12)$
to get a slope of $m = 0$ $m=0$

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