Here are the essential concepts you must grasp in order to answer the question correctly.
Function Notation
Function notation, such as f(x), is a way to denote a function and its input. In this case, f(4) indicates the value of the function f when the input is 4. Understanding function notation is essential for interpreting and evaluating functions correctly.
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Graph Interpretation
Interpreting a graph involves understanding how the visual representation of a function relates to its values. To find f(4), one must locate the point on the graph where x equals 4 and determine the corresponding y-value. This skill is crucial for analyzing functions graphically.
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Domain and Range
The domain of a function is the set of all possible input values (x-values), while the range is the set of all possible output values (y-values). Knowing the domain helps in identifying valid inputs for the function, ensuring that the evaluation of f(4) is within the function's defined limits.
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