Answer:
Explanation:
Step 1: We must locate the slope, by using the slope formula, which is:

When we plug it in we get:

Which simplifies to a -2
Step 2: We must plug in our values in the point-slope formula which is:

We can plug in (3,10) or (9,-2). It doesn't matter which one, we'll end up with the same answer. For this example, we'll use (3,10)
When we plug in our values we will get:

Step 3: Now we just need to put our equation in slope-intercept form


Therefore, our answer is

Hope this helps!!!