I believe that you are doing multiplication with this.
So… 9 x 3.65 = 32.85
Hope this helps. :)
the starting point of the function is 0
From x equals five to nine, the y value changes as follows
+10,+2,+1,+3
Assuming that "average" implies the mean, the sum of all four values is 15. Then divide 15 by the four values added = 15/4 = 3 3/4 or 3.75
