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Uh-oh! Arlen needs your help. He is trying to write an integral for the volume of square cross-sections perpendicular to the -axis where the base is the region bounded by the -axis and over the interval . Help him set up this integral.

These cross-sections are squares. This area formula is well known.

The function and the bounds must be in terms of , because the cross-sections are perpendicular to the -axis.
Rewrite the function in terms of and determine the -values that correspond with the given domain.