Slope-Intercept Form Calculator (2026)

Find the line equation y = mx + b given two coordinate points or one point and the slope m. Calculate x-intercept, y-intercept, and standard linear form.

Formula & Derivation

From two points (x1, y1) and (x2, y2):

m = (y2 - y1) / (x2 - x1)
b = y1 - m(x1)
Equation: y = mx + b