# How do you find the slope given y= -9x?

Jun 13, 2016

$m = \frac{- 9}{1} \mathmr{and} - 9$

#### Explanation:

Any equation which is in the form $y = m x + c$ represents a straight line. The coefficient of the x-term is the slope (m).

In $y = - 9 x$, the slope is therefore -9.
It is easier to use it as a fraction because then we have the change in y-values and the change in the x-values.

$m = \frac{- 9}{1}$