Solving Quadratics Review

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What is a quadratic equation?

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What is the Quadratic Formula?

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How do you solve a quadratic equation by factoring?

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How do you determine the solutions from a graph of a quadratic function?

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The solutions (or roots) of a quadratic function can be found at the points where the graph intersects the x-axis.

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What is the discriminant in a quadratic equation?

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What does it mean if the discriminant is positive?

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If the discriminant is positive, the quadratic equation has two distinct real roots.

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What does it mean if the discriminant is zero?

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If the discriminant is zero, the quadratic equation has exactly one real root (a repeated root).

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What does it mean if the discriminant is negative?

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If the discriminant is negative, the quadratic equation has no real roots (the roots are complex).

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