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Mathematics 12 Online
OpenStudy (anonymous):

What is the possible discriminant of the graph? (about to post image). Help will be MUCH appreciated!! (:

OpenStudy (anonymous):

OpenStudy (anonymous):

Well, there are no real roots so discriminant (of the assumed quadratic) must be negative.

Directrix (directrix):

Following from above, the discriminant would be -16 of the options.

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