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OpenStudy (anonymous):
HELP PLEASE! How can you tell on a graph when the discriminant is zero, positive or negative?
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OpenStudy (imstuck):
They look like this:
OpenStudy (precal):
negative
OpenStudy (precal):
because the square root of a negative number is a complex number and that is "no solution" or 2 complex numbers
OpenStudy (precal):
or on the graph, the function would not cross the x axis
OpenStudy (precal):
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