Question

I need this asap!!!!!

Answer 1

average rate of change = 23

Explanation:

the average rate of change of f(x) in the closed interval [ a, b ] is

`(f(b)-f(a))/(b-a)`

here [ a, b ] = [ 4, 9 ] , then

f(b) = f(9) = 212 ← from ordered pair in table

f(a) = f(4) = 97 ← from ordered pair in table , then

average rate of change =
`(212-97)/(9-4)` =
`(115)/(5)` = 23