Question

Help please?

use upper and lower sums to approximate
the area of the region using the given number of subintervals (of
equal width).

Answer 1

calculator exercise

Answer 2

?

Answer 3

How do I do it?

Answer 4

there are 8 pieces so each are of length \(\frac{1}{4}=.25\)

Answer 5

evaluate at \(0,.25,.5,.75,1,1.25,1.5,1.75\) for the lower limit, and multiply it all by \(.25\)

Answer 6

so here you should look up Riemann summation....must say that is quit annoying question when there is an easier way of finding the area....just google it surely you'll find it

Answer 7

do I evaluate each at x=2? as in .25 * 2 + .5 *2?

Answer 8

@satellite73

Answer 9

or is the width one?

Answer 10

the width of each rectangle was told to you by @satellite73 , take the domain of x we are looking at and divide it by the number of rectangles\[2/8=0.25=w\]the height of each rectangle is the y value at a particular x.

Answer 11

oh ok. I hadn't understood. Thank you