Trapezoid Rule and concavity

Suppose f is positive and its first two derivatives are continuous on [a, b]. It f″ is positive on [a, b], then is a Trapezoid Rule estimate of an underestimate or overestimate of the integral? Justify your answer using Theorem 7.2 and an illustration.

ECON 190 KADER WEEK 1: CHAPTER 1 Introduction to Economics I. Scarcity A. When human wants exceed resources available to satisfy them 1. Human wants are unlimited 2. Everyone struggles with scarcity B. Scarcity requires that we make choices based on available alternatives II. Economics A. The study of the...