Answer:
Well, I'm unsure of exactly what you're looking for but slope intercept form is y=mx+b
Explanation:
y=mx+b
m=slope
b=y intercept (y intercept is where on the graph the line crosses with the y-axis)
This means that the y intercept is (0, -3)
Then you have the slope: Rise/Run
Run=x axis
Rise= y axis
So if you were to graph y=-1/2x-3 you would find the y intercept (0,-3)
then, because it is negative 1/2, you would move two units to the left, and one unit down (-2,-1)
Hopefully this helps you out a bit. Apologies if anything was incorrect I'm not the greatest with this. :)