The range of a function is:
The range of a function is:
Answer: A. The set of all possible output values — The range of a function is the set of all possible output values that the function can produce. Key point: The domain is the set of input values; the range is…
- A.
The set of all possible output values
- B.
The set of all possible input values
- C.
The set of all possible pairs of input and output values
- D.
The set of all possible functions that can be formed
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Correct answer: A
The range of a function is the set of all possible output values that the function can produce.
Key point: The domain is the set of input values; the range is the set of output values.
Example: For f(x) = x^2 (x real), outputs are all real numbers greater than or equal to 0, so the range is [0, infinity).
Example: For f(x) = 1/x (x real, x != 0), outputs are all real numbers except 0, so the range is all real numbers except 0.