Question

A region bounded by f(y) = 2y + 3, y = 1, y = 3, and x = 1 is shown below. Find the volume of the solid formed by revolving the region about the y-axis.

Answer 1

ha

Answer 2

i will help you if you help me

Answer 3

@tcarroll010

Answer 4

@rizwan_uet can u help

Answer 5

@eSpeX

Answer 6

@amistre64

Answer 7

It will be an integral of the area over an interval, though I will admit that these have always been difficult for me to conceptualize. I think that @campbell_st or @Eyad or @e.mccormick could serve you better here.

Answer 8

ok

Answer 9

@satellite73 can u help?

Answer 10

Know your methods of shells, disks, etc?

Answer 11

http://tutorial.math.lamar.edu/Classes/CalcI/VolumeWithRings.aspx

Answer 12

i got 55pi ?

Answer 13

hi

Answer 14

u are rotating about the y axis, so express the function in terms of x so that when you integrate over y each little y component tells you the radius there