Mathematics

Problem

The region bounded by the curves

y = x^{2}

and

y = 4x - x^{2}

is to be revolved about the

x

-axis. Which of the following gives the correct interval of

x

-values that encloses the region? a)

-2 \le x \le 2

0 \le x \le 4

0 \le x \le 2

-1 \le x \le 3