Alg 1 Flashcard 7. Solving Quadratics by Quadratic Formula

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What is the Quadratic Formula?

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Tags

CCSS.HSA-REI.B.4B

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a = 1, b = -2, c = -3.

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x = 2, -3.

Tags

CCSS.HSA-REI.B.4B

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What does the discriminant (b^2 - 4ac) tell us about a quadratic equation?

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The discriminant indicates the nature of the roots of the quadratic equation: If > 0, there are two distinct real roots; if = 0, there is one real root (a repeated root); if < 0, there are no real roots (the roots are complex).

Tags

CCSS.HSA-REI.B.4B

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x = \frac{1}{2} (double root).

Tags

CCSS.HSA-REI.B.4B

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What is the Zero Product Property?

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Tags

CCSS.HSA-REI.B.4B

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x = \frac{3}{2}, -1.

Tags

CCSS.HSA-REI.B.4B

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What is the standard form of a quadratic equation?

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How do you determine if a quadratic equation opens upwards or downwards?

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Tags

CCSS.HSF-IF.C.7A

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What is the vertex of a parabola represented by a quadratic equation?

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