Barrons AP Calculus - David Bock

25. 
    

    The function f (x) = x^5 + 3x − 2 passes through the point (1, 2). Let f −1 denote the inverse of f.
    Then (f −1) ′(2) equals
    (A)
    (B)
    (C) 1
    (D) 8
    (E) 83

    
    


26. 
    

(A)

(B)

(C)

(D)

(E)

27. Which of the following statements is (are) true about the graph of y = ln (4 + x^2 )?
    I. It is symmetric to the y-axis.
    II. It has a local minimum at x = 0.
    III. It has inflection points at x = ±2.
    (A) I only
    (B) II only
    (C) III only
    (D) I and II only
    (E) I, II, and III


28. Let sin πx. Then f (3) =

(A) −3π

(B) −1

(C) 0

(D) 1

(E) 3π