Quadratic Circle
Problem
The quadratic curve, $y$ = $x$2$bx$$c$, where $b$,$c$ ⊕, is drawn and the points of intersection with the axes are labelled, A, B, and C. A circle is drawn through the points A, B, and C, and a fourth point D is created on the y-axis.
Find the co-ordinate of D.
Problem ID: 168 (Apr 2004) Difficulty: 4 Star