Question

If (4,-3) is a point on the line AB and slope of the line is (-2), write the equation of the line AB.

Answer 1

(4, -3) ≡ (x₁, y₁) is a point on the line AB and slope = m = -2

Equation of line AB in point slope form is

y - y₁ = m(x - x₁)

y - (-3) = -2(x - 4)

y + 3 = -2x + 8

2x + y - 5 = 0