AccelePrep for the ACT Test 2nd Edition Student Text

272 • P OWER U P ! T HE E XCLUSIVE C AMBRIDGE S AMPLE E XAM

3 log 3 ? A. 1 B. 3 1 C. 2 1

51.

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D. 3 2 E. 2 52. If ( ) ( ) f x x 1 2 2 , then what value for x creates the minimum value for ( ) f x ? F. 3 G. 2 H. 0 J. 1 K. 2 53. If x 2 2 2 2 2 1 n n n n n ^ h , then x ? A. 2 B. 4 C. 2 n D. 2 2 n E. 2 1 n 54. If ( ) f k k k 2 1 2 , then what is the set of all k for which ( ) ( ) f k f k ? F. {0} G. {1} H. {2} J. {1, 2} K. All real numbers 55. The limit of a function, lim ( ) f x x a " , denotes the value ( ) f x approaches for values of x approaching a . What is lim x x 1 1 1 2 x " ? A. –1 B. 0 C. 1 D. 2 E. The limit does not exist.

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