Answer:

Explanation:
The equation of a line in slope -intercept form is written as :-

The given equation :

To write the given equation in slope - intercept form , we need to first solve the right -hand sides in the equation.
![y+6=(1)/(3)(x-9)\\\\\Rightarrow\ [tex]y+6=(1)/(3)x-3\\\\\Rightarrow\ y=(1)/(3)x-3-6\\\\\Rightarrow\ y=(1)/(3)x-9](https://img.qammunity.org/2019/formulas/mathematics/middle-school/36nlhzno43gw156z84prqgbxrnyiqvolpu.png)
Hence, the equation written in slope-intercept form :
