Does the graph represent a function?

Yes, the graph represent a function.

Step-by-step explanation:

We have been given a graph. We are asked to determine whether the graph represent a function or not.

To check a graph is function or not, we use vertical line test. We draw a vertical line on graph and see if it crosses the graph more than once, then the graph is not  function.

If vertical line crosses a graph only once, then the graph is a function.

Since our given graph is a horizontal line, so each vertical line will intersect the graph exactly at one place, therefore, the graph is a function.

i believe the answer is d.

hope it you! : d