Surface integral of a parabolic cylinder

[jpmurphy]

Homework Statement

Find the flux of the vector field F=xi+yj+2k through the surface of the
inclined parametric cylinder shown below. Assume
that the surface is oriented outward.

Homework Equations

The Attempt at a Solution

 

[HallsofIvy]

What is the equation of that "inclined parabolic cylinder"? (Actually, it say "parametric" cylinder.) Is it not given anywhere?