# Math Help - Finding the volume of Solid on a graph.

1. ## Finding the volume of Solid on a graph.

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line.

y =e^(x)
y =1
x =2 ; about y=2

2. Originally Posted by racewithferrari
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line.

y =e^(x)
y =1
x =2 ; about y=2
washer method ...

$V = \pi \int_0^2 (2-e^x)^2 - (2-1)^2 \, dx$

3. I made a typo, it should be y=e^(-x)

so will the equation remained unchained except for e^x and should be changed to e^-x