# How do you find the slope for y= -3?

Apr 13, 2016

The slope of y = -3 is m=0 as this is a horizontal line and has no rise.

#### Explanation:

y = -3 is a line that runs horizontally through y at -3

The graph of a horizontal line has no rise there is no change in y
$\Delta y = 0$

Since slope is $m = \frac{\Delta y}{\Delta x}$ a zero in the numerator would make $m = 0$