There are 2 formulas we will use. The first is formula to find the slope, and the second is formula to find the line equation. To find the slope m = (y₂ - y₁)/(x₂ - x₁) To find the line equation y - y₁ = m(x - x₁)
Find the slope, input the numbers to the formula m = (y₂ - y₁)/(x₂ - x₁) m = (-2-3) / (1-2) m = -5/-1 m = 5
Find the line equation, input the numbers to the formula y - y₁ = m(x - x₁) y - 3 = 5(x - 2) 5(x - 2) = y - 3 5x + 10 = y - 3 5x - y = -3 - 10 5x - y = -13
