Answer:
(Look at image)
Step-by-step explanation:
(Also look at image)
0.331
0.332
0.333
There you go.
By MVT,
Moreover,
Hence the largest possible value of f(5) is 13
(8+5)^2 + (15/5)
8 + 5 = 13
13 * 13 = 169
169 + (15/5)
15/5 = 3
169 + 3
172