Where a line going through random point intersects another line at 90 degrees
In these workings I demonstrate how to find the intersection of two lines perpendicular to each other, whereby one line passes through a random point (a, b). The answers are left in their abstract form. Part 1 Part 2 Part 3 Part 4 Part 5 Here is a free Desmos graph that can be played around with: https://www.desmos.com/calculator/7bmvuhqr3n