Choose the one alternative that best completes the statement or answers the question.
Indicate whether the function is one-to-one.
-{(12, -18), (-12, -18), (20, -8)}
A) Yes
B) No

Question

Quizplus · Accepted Answer

A function is one-to-one if each x-value maps to a unique y-value. In this set, both (12, -18) and (-12, -18) map to the same y-value (-18), so it is not one-to-one.

Choose the One Alternative That Best Completes the Statement or Answers