Slope and Line Equation Calculator

Enter two distinct points. Nonvertical lines use y=mx+by=mx+b. Equal x coordinates produce a vertical line x=constantx=\text{constant}, whose slope is undefined.

Results

Enter your values and select Calculate.

m=y2−y1x2−x1,b=y1−mx1m=\frac{y_2-y_1}{x_2-x_1},\quad b=y_1-mx_1

How it works

Enter two distinct points. Nonvertical lines use y=mx+by=mx+b. Equal x coordinates produce a vertical line x=constantx=\text{constant}, whose slope is undefined.

m=y2−y1x2−x1,b=y1−mx1m=\frac{y_2-y_1}{x_2-x_1},\quad b=y_1-mx_1