Answer:
2 3/4 C
Step-by-step explanation:

A function is defined as a set of points for every x-value, there is only one y-value.
So, you can't have two y-values for every x-value.
Thus, (B) would be a relation, because x = 7 has two y-values, and as such, doesn't satisfy the condition of a function.
Answer:
that's the answer
Step-by-step explanation:
for the next time, dont post you derivative questions on brainly, there is a lot of websites that can solve this for you with steps.