SOLUTION: How do I determine if a parabola has real or complex roots?

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Question 276019: How do I determine if a parabola has real or complex roots?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How do I determine if a parabola has real or complex roots?
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If it does not touch the x-axis it has two complex roots.
If it touches the x-axis at one point it has two equal Real roots.
If it intersects the x-axis at two points it has to unequal Real roots.
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Cheers,
Stan H.