If a function f has domain {1,2,3} and f(1)=2, f(2)=3, f(3)=4, what is f(2)?

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Multiple Choice

If a function f has domain {1,2,3} and f(1)=2, f(2)=3, f(3)=4, what is f(2)?

Explanation:
In a function, the value at a specific input is given by the mapping for that input. Here, the function's definition includes f(2) = 3, so the output when the input is 2 is 3. The other inputs have their own listed outputs (f(1) = 2 and f(3) = 4), but they don’t change the value at 2. Therefore, f(2) is 3.

In a function, the value at a specific input is given by the mapping for that input. Here, the function's definition includes f(2) = 3, so the output when the input is 2 is 3. The other inputs have their own listed outputs (f(1) = 2 and f(3) = 4), but they don’t change the value at 2. Therefore, f(2) is 3.

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