y=-3
Explanation:
The equation for point-slope form of the equation is:
y - y1 = m(x-x1)
where m is the slope of the line and (x1,y1) is a point on the line.
you fill in the values for m(0), x1(-6), and y1(-3)
y+3=0(x-3) [This is the point-slope form of the equation of this line.]
y+3=0+0
y=0-3
often, y=0-3 will change to y=-3 (this will be the slope-intercept form)