# The equation of a line calculator

A calculator for calculating line formulas on a plane can calculate: a straight line formula, a line slope, a point of intersection with the Y axis, a parallel line formula and a perpendicular line formula. To do this, you need to enter the coordinates of the first and second points in the corresponding fields.

**Enter line coordinates**

**The coordinates of the first point:**

**X1:**

**Y1:**

**The coordinates of the second point:**

**X2:**

**Y2:**

**Line formula:**

**Incline:**

**Y axis intersection point:**

**Parallel line formula:**

**The formula of the perpendicular line:**