How to graph Y = -3/4X. I'm Bon Crowder with Math4.com and we're graphing Y = -3/4X. So, there's a few ways to do this. One is to make a T chart but another is if you notice that this is in the shape Y = MX + B, you can see that this is a +0 right here. So my Y intercept is at 0, right there and my slope is -3/4 which means from any given point that's already on the graph I can go down three and right four. Well, I have a point on the graph and so I go down three and right four and put another point and there I have the graph of my line. And that's how you graph Y = -3/4X. I'm Bon Crowder with Math4.com, enjoy.