Given:
Horizontal line
(The slope of horizontal line equals zero. m = 0)
(x₁,y₁) = (-4,6)
Solution:
General formula for finding line equation
y - y₁ = m(x - x₁)
plug in the numbers
y - 6 = 0(x - (-4))
y - 6 = 0
y = 6
The equation of the horizontal line is
