In this blog post, I am going to show you how to write an equation in slope point form using the information we have from a graph and y-intercept form.

So let’s say we had this graph:

We can see that there are two visible nice points where we can take information from to help us write this equation. (2,0) and (0,3)

Before we construct this equation, we have to determine the slope by using the change in y over the change in x method. (which is equal to 3/2)

Once we know our slope, then we can use the information shown the graph and plot it into our equation.

3/2(x-_)=y-_

(Where the blanks are, you would plot in the x1 and y1 coordinates.

3/2(x-2)=y-0

Then you have your completed point slope equation.