Question

h

Answer 1

note also that the x intercepts are at x = -1 and 1

Answer 2

the radius of the "cylinder" is the height function \[\large f(x) = 1-x^2\]

Answer 3

is the final answer -7pi/5

Answer 4

\[\large V=\pi \int\limits_{-1}^{1}(1-x^2)^2 dx = \pi \int\limits_{-1}^{1}(1-2x^2+x^4)dx=\frac{ 16\pi }{ 15 }\]