In algebra and precalculus, one of the first skills students encounter when working with functions is determining the domain. While some functions, like linear functions (f(x) = 2x + 3), have domains that extend infinitely in both directions, many others come with built-in restrictions. The domain represents all possible input values (typically x-values) for which a given function produces a real, defined output. Learning how to find the domain in interval notation is essential not only for solving equations but also for graphing functions, analyzing behavior, and preparing for calculus.
Find The Domain In Interval Notation
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