Y=-1/2x-3 in slope intercept form i don't understand on how to do this.

Well, I'm unsure of exactly what you're looking for but slope intercept form is y=mx+b

Step-by-step 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. :)

both equations and proportions are better.