Question

Question #1335e

Answer 1

y = `-4/7`x

Explanation:

First, you must find the slope of the line. The slope equation is colloquially equal to "rise over run"; in math terms, it's merely:

`m = (y_2 - y_1)/(x_2 - x_1)`

We have two points [(7, -4) and (0, 0)], so plugging into this formula, we get:

`m = (-4 - 0)/(7 - 0) = -4/7`

Since the line goes through the origin, there is no b value to the slope-intercept form (y = mx + b). So all you have to do is plug in `-4/7` for m, leaving you with y = `-4/7`x.