Chapter 5.1, Problem 20E

(a)

To determine

To sketch: The graph of $f\left(x\right)=9-x$ on the interval $\left[3,8\right]$.

(b)

To determine

To calculate: The value of $\Delta x$ and the grid points.

(c)

To determine

To illustrate: The left Riemann sum and the right Riemann sum of the function

$f\left(x\right)=9-x$ on the interval $\left[3,8\right]$ for $n=5$; determine which Riemann sum underestimates

and overestimates the area under the curve.

(d)

To determine

To find: The left and right Riemann sums of $f\left(x\right)=9-x$ on the interval $\left[3,8\right]$.