Respuesta :
Slope of line passing through (x₁, y₁) and (x₂, y₂) = (y₂-y₁)/(x₂-x₁)
Slope of line passing through (4, 4) and (7, -2) = (-2-4)/(7-4) = (-6)/3 = -2
Slope of line passing through (4, 4) and (7, -2) = (-2-4)/(7-4) = (-6)/3 = -2