Let be a positive

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

Problem

Let

g

be a positive, decreasing, and concave up function on

[1,4]

. Equal-width left and right Riemann sums are used to approximate

\displaystyle \int_{1}^{4} g(x)\,dx

. Indicate whether each sum is an overestimate or an underestimate. Write your answer in the form: Left: ____ ; Right: ____