1.2.2 Function Notation (continued) Example 2 Graphing Functions
In the notation f ( x ), f is the name of the function. The output f ( x ) of a function is called the dependent variable because it depends on the input value of the function. The input x is called the independent variable. When a function is graphed, the independent variable is graphed on the horizontal axis (the x -axis) and the dependent variable is graphed on the vertical axis (the y -axis).
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