Extraneous Solutions for Quadratic Equations
- Author:
- Steve Phelps
- Topic:
- Equations, Quadratic Equations
Drag point A around in the applet below. As you know, when the graph intersects the x-axis, the associated quadratic equation will have two roots. When the equation does not intersect the x-axis, the associated quadratic equation will have two complex conjugate solutions.
How do we interpret the geometric significance of the complex roots?