Question

Does the equation below represent a relation, a function, both a relation and a function, or neither a relation nor function

y=3x²-9x+20

A. neither a relation nor a function

B. both a relation and a function

C. function only

D. relation only

Answer 1

The answer is D or C in my opinion it’s D

Answer 2

B. both a relation and a function

Explanation:

A relation is a set of one or more ordered pairs.

A function is a relation in which each element of the domain is paired with exactly one element of the range.

The vertical line test can be used to determine that the graph of this equation has one y-coordinate for every x-coordinate.

Therefore, it is both a relation and a function.