Question

How do you graph the equation by plotting the points y = x - 2?

Answer 1

Plot the y-intercept and then use the rise over run method.

Explanation:

To graph any equation, you just pick points and connect them. If you are asking how to graph a linear equation such as `y = x - 2` without having to pick random points, then keep reading.

`y = mx + b` (slope-intercept form)
`y = x - 2`
The linear equation in question is in a slope-intercept form. The slope`= m = 1` and the y-intercept`= b = -2`.

First, we plot our y-intercept which is equal to -2. This means that our y-intercept is at `(0, -2)`. Graph the point `(0, -2)`.

Second, we know that our slope is equal to 1. This means that from our y-intercept that we graphed, we will plot points by doing the rise over run method. Since our slope `m` is equal to 1, then `m=1=(rise)/(run) = 1/1`. This means that we will go 1 unit up and 1 unit to the right.

graph{x-2 [-10, 10, -5, 5]}