Find an Equation of the Line with Slope M That $(-3,-9), m=0$

Multiple Choice

Find an equation of the line with slope m that passes through the given point. Put the answer in slope-intercept form.
- $(-3,-9) , m=0$

A) $y=x+\frac{1}{3}$
B) $y=x-\frac{1}{3}$
C) $y=-9$
D) $x=-3$