PLEASE HELP ME FAST!! I am close to a 100 so please don't give me a wrong answer.

y = 8x

Step-by-step explanation:

1. First, we need to know what slope-intercept form is. The slope-intercept form of any linear equation is y = mx + b, where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept.

2. To find the slope, let's take the two points (0,0) and (10,80) and plug their values into this formula:

3. Now that we know our slope, our equation should look like this so far: y = 8x + b.

4. Since b is the y-intercept, we can say that b = 0 because the line intersects with the y-axis at (0,0).

5. Therefore, we get an equation of y = 8x or y = 8x + 0.

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3