To find the intersection of two 2D Euclidean equations, first graph the equations as normal, then choose the find intersection option. In the dialog box, choose the equations you'd like to find the intersection of. You must also give an initial guess.

The initial guess does not neccessarily have to be very close to the actual intersection. But, the closer the guess, you'll be more likely to get an answer, and get it quickly.

If equations have more than one intersection, it's impossible to guarantee which intersection you'll find. But the closer your initial guess, the more likely you'll find the intersection you're looking for.