Slope-Intercept Form of a Line
Also known as y = mx + b
Enter your known values, leave one input blank, and solves for the missing one. Try different units for next level excitement!
Learning zone
Slope-intercept form is the workhorse line equation of school algebra: m sets the steepness and b pins where the line crosses the y-axis. It doubles as a model for anything linear — a taxi fare of $3 base plus $2 per kilometre is just y = 2x + 3, with the intercept as the fixed cost and the slope as the rate.
Slope-Intercept Form of a Line
Where
- = y-coordinate
- = Slope
- = x-coordinate
- = y-intercept
Missing one of these? Work it out first, then come back
- y-coordinate — Point-Slope Form of a Line, Midpoint Formula
- Slope — Slope Between Two Points, Point-Slope Form of a Line
- x-coordinate — Point-Slope Form of a Line, Midpoint Formula
- y-intercept — x-Intercept of a Line, Pythagorean Theorem