yint is where the line crosses the y axis or when x=0
or just remember
y=mx+b
m=yintercept
y=-3x-5
-5 is yint
yo is correct for first
in form
ax+by+c=0
slope=-a/b
-6x+4y+12=0
-(-6)/4=3/2
you is correct
sub to solve
x=1 y=3
(1,3)
yo swiched the points
