Geometry & Trigonometry
Basic

Slope of a Line

Steepness of a straight line.

Formula

m=y2−y1x2−x1m = \frac{y_2 - y_1}{x_2 - x_1}

Variables

x_1,y_1,x_2,y_2Two points

Example

Through (1, 2) and (4, 11): m = (11−2)/(4−1) = 9/3 = 3.

Did You Know?

Slope — "rise over run" — is the everyday ancestor of the derivative in calculus.

slopelinecoordinate