Choose the point-slope equation of a nonvertical line with slope m that passes through the point (x₁, y₁).

(a) y + y₁ = mx + x₁

(b) y − y₁ = mx − x₁

(c) y + y₁ = m(x + x₁)

(d) y − y₁ = m(x − x₁)