This calculator finds the equation of a line that is perpendicular to a given line y = mx + t and passes through a given point ( x0 , y0 ). The perpendicular line y = ax + b is calculated using the following formulas:
a = -1/m
b = y0 + ((1/m) * x0)
To find the equation of a perpendicular line, simply fill in the values below and then click the “Calculate” button.
Perpendicular line equation: y = -0.50x + 20.00