A solid is generated by revolving the region under the graph of a continuous function…

MATHEMATICS · Single correct · AP · Calculus AB · Applications of Integration · Applications of Integration

Problem

A solid is generated by revolving the region under the graph of a continuous function

y=f(x)

0\le x\le b

about the

x

-axis. Which expression represents the radius of a typical circular cross-section taken at position

x

? (a)

\sqrt{f(x)}

(b)

f(x)

(c)

2f(x)

(d)

x