HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The water in a swimming pool is being drained. The function shown in the graph below represents the amount of water in gallons that remains in the pool after x minutes.

(I will upload the picture in a few seconds)

At what rate does the water drain?

HELP ME PLEASE The water in a swimming pool is being drained The function shown in the graph below represents the amount of water in gallons that remains in the class=