Question

There is a line that includes the point(3, -6)and has a slope of
-2 . What
is its equation in
slope -intercept
form?

Answer 1

point-slope form: (y-y1)=m(x-x2)
y-(-6)=-2(x-3)
slope-intercept form: y=mx +b
y+6=-2x+6
y=-2x

Answer 2

y=mx+b
m=-2; (3,-6)
-6=(-2)(3)+b
-6=(-6)+b
-6+6=b
0=b