Find the average rate of change of $f(x) = 2 x^2 +1$ between each of the pairs of points below.

(a) Between $(1, 3)$ and $(4, 33)$

answer =

(b) Between $(d, m)$ and $(p, v)$

answer =

(c) Between $(x,\ f(x))$ and $(x+h,\ f(x+h))$

answer =