Cracking The Ap Calculus ab Exam 2018

7.For   what    value   of  k   is  f   continuous  at  x   =   1   if  f(x)    =   .

(A)−1

(B)−

(C) 2

(D) 8

8.Which of  the following   integrals   correctly   gives   the area    of  the region  consisting  of  all points  above

the x-axis  and below   the curve   y   =   8   +   2x  −   x^2?

(A)     (x^2    −   2x  −   8)  dx

(B)     (8  +   2x  −   x^2 )   dx

(C)     (8  +   2x  −   x^2 )   dx

(D)     (x^2    −   2x  −   8)  dx

9.Find      if  y   =   sec(πx^2 ).

(A)tan(πx^2 )

(B)(2πx)tan(πx^2 )

(C)sec(πx^2 )tan(πx^2 )

(D)sec(πx^2 )tan(πx^2 )(2πx)

10.Given the curve y = 5 − (x − 2) , find at x = 2.

(A)−

(B)−