Answer:
The equation of this line would be y = -6
Step-by-step explanation:
In order to find this, we must first find the slope. For that we use the two points and the slope equation.
m(slope) = (y2 - y1)/(x2 - x1)
m = (-6 - -6)/(7 - 3)
m = 0/4
m = 0
Given that slope, we can use it along with a point in point slope form. From there we can solve for y and get the equation.
y - y1 = m(x - x1)
y + 6 = 0(x - 7)
y + 6 = 0
y = -6