(Solving for a specified variable, equations of lines) When

Last updated: 7/31/2022

(Solving for a specified variable, equations of lines) When writing the equation of a line in college algebra, we will start with the point-slope form of line, y - y₁ = m(x-x₁), and we will solve it for y to write it in slope-intercept-form, y = mx + b. Substitute the given point and slope into the point-slope form and then solve for y so your equation is in slope-intercept form. a) x₁ = 2, y₁ = 3, m = 4 b) x₁ = 5, y₁ = -5, m = -2