You can put this solution on YOUR website! The equations are already in skope-intercept form, so we will graph from there.
The first one; y=3x
slope =
y-intercept = 0
So from the point (0,0), move up 3 units and to the right 1, then from that point move the same, and one more time.
The 2nd ; y=4x-3
slope =
y-intercept=-3
So from the point (0,-3), your are going to move up 4 units and to the right 1, then from that point the same thing, then one more time.
Now you should have both lines.
=)