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OpenStudy (anonymous):
use the discriminant to identify a quadratic equation having 2 real solutions.
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OpenStudy (mertsj):
That would be the one where the discriminant is positive.
OpenStudy (anonymous):
yeah, but how do i do it?
OpenStudy (mertsj):
Make up a quadratic equation and calculate the discriminant. If it is positive, you are done. If not work on it to make the discriminant positive.
Directrix (directrix):
@_brrianna See attached chart
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