Barrons AP Calculus - David Bock

(D)

(E) 1

12.

(A) 1

(B) −1

(C) 2 − e

(D)

(E) e − 1

13. The graph of is concave upward when

(A) x > 3

(B) 1 < x < 3

(C) x > 1

(D) x < 1

(E) x < 3

14. As an ice block melts, the rate at which its mass, M, decreases is directly proportional to the
    square root of the mass. Which equation describes this relationship?
    (A)
    (B)
    (C)
    (D)
    (E)


15. The length of the curve y = 2x3/2 between x = 0 and x = 1 is equal to

(A)

(B)

(C)

(D)

(E) none of these