Answer:
Step-by-step explanation:
When we need to deduct from a graph if it's a function or relation, we use the vertical line proof.
The vertical line proof consists in drawing a vertical line on the function.
Therefore, the first graph is not a function, because if we draw a vertical line, it will intersect two points of the graph.
The first graph.
To determine whether or not a line is a function or not, you can use something called the vertical line test. If it fails the vertical line test, then it is not a function.
................Uhm not a question.....................................................o/o
1 dsd
C
I think the answer is C, I am not 100% sure tho