Question

Please help on this one?

Answer 1

C

Explanation:

The rate of change is measured using

`(f(b)-f(a))/(b-a)` in the closed interval [a, b ]

Here [a, b ] = [35, 45 ]

from the table f(b) = f(45) = 34.1 and f(a) = f(35) = 31.4, hence

rate of change =
`(34.1-31.4)/(45-35)` =
`(2.7)/(10)` = 0.27 → C