How Do You Find f(x) If You Have a Value For x?

How Do You Find f(x) If You Have a Value For x?

Note:

To solve a function for a given value, plug that value into the function and simplify. See this first-hand by watching this tutorial!

Keywords:

  • problem
  • function
  • linear equation
  • linear function
  • linear
  • plug in
  • evaluate function
  • evaluate
  • function value
  • function input
  • output

Background Tutorials

  • Understand that a function from one set (called the domain) to another set (called the range) assigns to each element of the domain exactly one element of the range. If f is a function and x is an element of its domain, then f(x) denotes the output of f corresponding to the input x. The graph of f is the graph of the equation y = f(x).

      • What is Function Notation?What is Function Notation?

      What is Function Notation?

      Every see 'f(x)' in your math? That's function notation! It's a way to indicate that an equation is a function. Learn about function notation by watching this tutorial.

Further Exploration

  • Use function notation, evaluate functions for inputs in their domains, and interpret statements that use function notation in terms of a context.