the equation is
[tex]y {}^{2} - y {}^1[/tex]
dvided by
[tex]x ^2 - x ^1[/tex]
6-0
= 6/-3= -2
-3-0
once you have your slope you plug in one of the coordinates and the slope into y=mx+b
I used (0,0)
0=-2(0)+b
0=0+b
0=b
your y int is 0
your equation would be y=-2x+0
