For a function that is increasing and concave down on

MATHEMATICS · Subjective · AP · Calculus AB · Integration and Accumulation of Change · Integration and Accumulation of Change

Problem

For a function

g

that is increasing and concave down on

[1,5]

, would a left Riemann sum with four equal subintervals provide an overestimate or an underestimate of

\displaystyle \int_{1}^{5} g(x)\,dx

? Explain your reasoning in one sentence.