Final answer:
Option C, (3, 2), (-4, -2), (3, 1), (-4, 1), represents (y) as a function of (x) because each (x)-value has a unique (y)-value. In a function, each input must have only one corresponding output, and this condition is met in option C.
Step-by-step explanation:
The set of ordered pairs that represents y as a function of x is option C which is (3, 2), (-4,-2), (3, 1), (-4, 1). A function is a relation in which each input has only one output. To determine if a set of ordered pairs represents y as a function of x, we need to check if each x-value has a unique y-value. In option C, each x-value (3, -4) has a unique y-value. Therefore, option C represents y as a function of x.