Nathan B. answered 06/14/18
Tutor
5
(20)
Elementary and Algebraic skilled
Here is the point-slope formula:
y - y1 = m(x - x1)
We're given m, the slope, as -1/3.
We're given (x1, y1) with the point (-3, 0). From here, it's just plugging the values in:
y - 0 = -1/3(x - (-3))
Now for cleaning up:
y = -1/3(x + 3)
Since you asked for the point-slope form of the equation, we're done.