The region bounded above by and below by for is revolved about the horizontal line

MATHEMATICS · Subjective · AP · Calculus AB · Applications of Integration · Applications of Integration

Problem

The region bounded above by

y = 4

and below by

y = x^{2}

for

0 \le x \le 2

is revolved about the horizontal line

y = 1

. Indicate which bounding curve determines the outer radius of a typical washer and briefly explain why.