$f(x)=\frac{7}{x}$ between $x=2$ and $x=6$

Using two rectangles, the estimate for the area under the curve $is7\mathrm{.}467.$

$(Roundto$ three decimal places $as$ needed.$)$

Using four rectangles, the estimate for the area under the curve $is$

$(Roundto$ three decimal places $as$ needed.$)$