If f(x) = x^2 - 4, what is f(3)?

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Multiple Choice

If f(x) = x^2 - 4, what is f(3)?

Explanation:
Evaluating a function at a specific input means substituting that input for the variable in the function. Here, f(x) = x^2 - 4. To find f(3), plug in x = 3: f(3) = 3^2 - 4 = 9 - 4 = 5. So the function outputs 5 when the input is 3.

Evaluating a function at a specific input means substituting that input for the variable in the function. Here, f(x) = x^2 - 4. To find f(3), plug in x = 3: f(3) = 3^2 - 4 = 9 - 4 = 5. So the function outputs 5 when the input is 3.

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