Barrons AP Calculus - David Bock

48. y = x^2 and y = 4; about the line y = −1.

(A)

(B)

(C)

(D)

(E) none of these

49. y = 3x − x^2 and y = 0; about the x-axis.

(A)

(B)

(C)

(D)

(E)

50. y = 3x − x^2 and y = x; about the x-axis.

(A)

(B)

(C)

(D)

(E)

51. y = ln x, y = 0, x = e; about the line x = e.

(A)

(B)

(C)