## anonymous one year ago (a) Estimate the area under the graph of f(x)=7/x from x=1 to x=5 using four approximating rectangles and right endpoints. (b) Repeat part (a) using left endpoints.

1. anonymous

For the right endpoints would it just be $\frac{ 7 }{ 2 } +\frac{ 7 }{ 3 }+\frac{ 7 }{ 4 }+\frac{ 7 }{ 5 }$ ?

2. Tommynaut

That looks right. Using the same mentality, what would part b) be?

3. anonymous

Hmm... I think that's $7+\frac{ 7 }{ 2 }+\frac{ 7 }{ 3 }+\frac{ 7 }{ 4 }$ am I right?

4. Zale101

Correct.

5. anonymous

Thanks so much! :D

6. freckles

the only thing I would add..

7. freckles

or better word multiply by is...

8. freckles

oh the base which is (5-1)/4 which is 1 :) so not really needed

9. anonymous

Ohh right!

10. anonymous

I was too lazy to type that in :P

11. anonymous

but thanks!!!

12. freckles

but you didn't type it in because you knew you didn't need it :)

13. anonymous

True xD

14. freckles

Go you! :)

15. anonymous

Haha thanks @freckles :D