# How do you write an equation of a line with (4,0) and slope 1/3?

##### 1 Answer

Apr 7, 2015

There are several ways to write an equation of the line with (4,0) and slope

- Use Point-Slope form
- Use Slope-Intercept form

First, **Point-Slope form** :

So write:

Simplify if you wish:

Or, **Slope-Intercept form** : y = mx + b, where m is your slope, and b is the y-intercept (not given).

So, write:

Then, use your ordered pair to substitute in for x and y, and solve for b: