algebra 2 review

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Back

(x - 5)(x - 3)

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Back

(x + 3)(x + 5)

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What does it mean if a quadratic function has a maximum?

Back

The graph opens downwards and the vertex is the highest point.

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What does it mean if a quadratic function has a minimum?

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The graph opens upwards and the vertex is the lowest point.

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Back

Set the equation to zero, factor to get (x - 5)(x - 3) = 0, then x = 5 or x = 3.

Front

What is the vertex form of a quadratic function?

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Front

What is the standard form of a quadratic function?

Back

Front

What is the discriminant and how is it used?

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Front

What does a positive discriminant indicate?

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Two distinct real roots.

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What does a zero discriminant indicate?

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One real root (the roots are the same).