1. The problem statement, all variables and given/known data Consider the infinite region in the first quadrant between the curve y=e^-5x and the x-axis. Find area= 1/5 (got this part) Compute the volume of the solid generated by revolving the region about the x-axis: Compute the volume of the solid generated by revolving the region about the y-axis: 2. The attempt at a solution I do not understand how to do the last two parts. I tried to do dV=base*height dV=pi*x^2*dy because area of circle is base= pi*x^2 leaving me with dv= pi*x^2*(-1/5e^(-5x) and taking limit from 0 to inifity by taking limit from 0 to b, but i am not understanding how to get the answer. Please advise. I am so lost. Thank you in advance.