Let f(t)=8t^(2)+7t.

Question

a. f′(4)≈

b. f′(−3)≈

c. f′(9)

Answer 1

≈

a. f′(4) = 64 + 7 = 71
b. f′(−3) = −48 + 7 = −41
c. f′(9) = 144 + 7 = 151