ANSWER:
B. Not a function, fails the vertical line test by hitting two points on the graph with one vertical line.
C. Not a function, there is an input that has two different outputs.
Explanation:
We do the vertical line test, like so:
We can see that the vertical line test fails since there is an input that has two different outputs
Therefore, the correct answers are:
B. Not a function, fails the vertical line test by hitting two points on the graph with one vertical line.
C. Not a function, there is an input that has two different outputs.