Question

I need help with these math problem ASASP! Please! The first question....

The table shows values of a function f(x). What is the average rate of change of f(x) over the interval from x=5 to x=9? show work.
This is the table....
x /4/ / 5/ /6/ /7/ /8/ /9/ /10/
f(x) /-4/ / -2/ /8/ /10/ /11/ /14/ /18/

This is the best i can do to show the table. PLEASE help!

Answer 1

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