Which of the following best describes the equation below?
A. both a relation and a function
B. relation only
C. neither a relation nor a function
D. function only
![Which of the following best describes the equation below A both a relation and a function B relation only C neither a relation nor a function D function only class=](https://us-static.z-dn.net/files/df1/4b2fba241545311241b6018d67d332a1.png)