paraalell has same slope
for
ax+by=c
an equatio with same slope is
ax+by=z where a and b remain unchanged and z is a constant
so
4x+3y=12
paralell is
4x+3y=z
find waht z is
(-3,2)
(x,y)
inpus -3 for x and 2 for y
4(-3)+3(2)=z
-12+6=z
-6=z
the equation is
4x+3y=-6
or
y=-4/3x-2