Extraneous Solutions for 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. [br][br]How do we interpret the geometric significance of the complex roots?

Solving Quadratic Equations Using Quadratic Formula (Quiz)

[b][color=#c51414]Practice: Solving Quadratic Equations Using the Quadratic Formula[/color][/b][br][br]You can create a new quadratic equation to practice solving by clicking the button in the upper left-hand corner.[br]Do this as many times as you need to master this concept!

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