Determine whether y is a function of x.

Question

Quizplus · Accepted Answer

The question cannot be answered without additional information. We need to know what y and x represent, and what values they can take. If each x value corresponds to a unique y value, then y is a function of x and the answer is B. However, if there exists an x value that corresponds to more than one y value, then y is not a function of x and the answer is A. A relation is a function if each x-value is paired with only one y-value. In this case, there is no indication that an x-value is repeated with different y-values, so y is a function of x.

Determine Whether Y Is a Function of X