College Prep

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What is a function?

Back

A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.

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How can you determine if a relation is a function?

Back

Use the vertical line test: if a vertical line intersects the graph of the relation at more than one point, it is not a function.

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What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for which the function is defined.

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What is the range of a function?

Back

The range is the set of all possible output values (y-values) that a function can produce.

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Back

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What is the quadratic formula?

Back

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What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

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What is the difference between an open interval and a closed interval?

Back

An open interval (a, b) does not include the endpoints a and b, while a closed interval [a, b] includes both endpoints.

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How do you find the maximum or minimum of a quadratic function?

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What is the process of factoring a polynomial?

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Factoring a polynomial involves rewriting it as a product of its factors, which can help in solving equations.