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📈college algebra review

Output

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

The output is the result of a function for a given input value. It represents the value that the function assigns to each element in its domain.

5 Must Know Facts For Your Next Test

  1. In a function, each input corresponds to exactly one output.
  2. The output is often represented by $f(x)$, where $x$ is the input.
  3. For a given function $f$, if $x$ is in the domain of $f$, then $f(x)$ is in the range of $f$.
  4. Graphically, the output can be seen as the y-coordinate of points on the graph of the function.
  5. To find an output from an algebraic expression, substitute the input value into the function and simplify.

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