Answer:
D) x² - y = 10x + 25 + y
Explanation:
A relation only becomes a function if each x-value only has a single y-value as the answer.
Evaluating
- A and B cannot be the answers as each value will get 2 answers
- C will also not be the answer as y² means at least 2 answers will be given
- D is the best option as each inputted x-value will get an answer of a single y-value