a quadratic equation with a negative discriminant has a graph that ? plz help

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22-11-2014
Mathematics

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a quadratic equation with a negative discriminant has a graph that ? plz help

Sagot :

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sabrina101 sabrina101 · Answer 1 · 2014-11-22T14:30:53-05:00

sabrina101 sabrina101

22-11-2014

If the discriminant is negative, then both roots are complex numbers. Since there are no real roots, the quadratic will not touch or cross the x-axis.

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shellhott224 shellhott224 · Answer 2 · 2014-11-22T14:37:09-05:00

shellhott224 shellhott224

22-11-2014

The discriminant is b^2-4ac. So, b=7, a=2, and c=3. 7^2=49-4(2)(3)=49-24=25. So the discriminant is 25

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