3.1`-3.4 quiz for math

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6 Terms

1
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Discriminant formula

Discriminant = b² - 4ac

2
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Positive discriminant

two real roots, graph below x axis and crosses at 2 points

3
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negative discriminant

no real roots, 2 imaginary roots graph above x axis

4
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zero discriminant

1 real root. graph vertex at x axis

5
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QUADRATIC EQUATION FORMAT

Always remember to check order of equation and reformat into ax² + bx + c= y

6
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i1 = i; i2 = -1; i3 = -i; i4 = 1

i1 = i; i2 = -1; i3 = -i; i4 = 1