A function from a set to a set is a relation that assigns to each element in the set exactly one element in the set . The set is the domain (also called the set of inputs) of the function and the set contains the range (also called the set of outputs).
To solve this problem, we have plotted each function and are shown in order below. As you can see:
have the same range (0,∞). The only graph that shows a range (2,+∞) is the function so that's the answer.