Respuesta :

tramserran

Answer: y = 3

Explanation:

Parallel to the x-axis means slope (m) = 0

Input the given point (1, 3) and the slope into the Point-Slope formula:

y - y₁ = m(x - x₁)

y - 3 = 0(x - 1)

y - 3 = 0

y      = 3