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Identifying the Domain of a Quadratic Function (2.2.2)

Learn how to identify the domain of a quadratic function in real-world contexts, considering input values that make sense in the problem. Explore examples with a pole vaulting scenario.

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Identifying the Domain of a Quadratic Function (2.2.2)

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  1. October 2nd, 2017 Identifying the Domain of a Quadratic Function (2.2.2)

  2. Definition: The domain of a function is the set of all input values (x-values) that satisfy the functions restrictions. Most often, the domain is all real numbers. However, in a real-world problem we need to consider what is reasonable for the context of the problem.

  3. Ex. 1: Give the domain of the function

  4. Pole vault Video Link Ex. 2: If the pole vault in the video is modeled by a quadratic equation, where x represents the time in seconds and y represents the height of the pole vaulter, what is the reasonable domain for the function?

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