Equation Driven Sketch and Revolve not working

Hi!

I am having two issues:

1. Trying to draw a profile with the equation driven sketch. It works, but right when I click the green checkmark to generate the profile, an error pops up (attached under Error File).

The equation I am using is:

3*sqrt(16-x^2)/sqrt(2*x+17)

x1 = 4

x2 = -4

2. I am trying to revolve the profile 180 degrees, but it tells me I cannot because of either an open contour, self intersecting lines, etc.

Please help!

Thank you in advance!

Jennifer

SolidworksParts And Features