Question

Does this graph show a function? explain how you know.

Answer 1

The answer to this question is yes, the graph passes the vertical line test. A relation is a function when all the domain elements map to exactly one range element.

Answer 2

ANSWER

Yes,the graph passes the vertical line test.

EXPLANATION

The graph above shows a function because if we draw a vertical line across the graph anywhere, it will never intersect the graph more than once.

This is what we call the vertical line test.

Since the graph of the function passes the vertical line test, the graph shows a function.

See graph

Therefore the correct answer is option C.