Algebra II Test Chapter 11 Mr. Pleacher Name ______________________ I. Multiple Choice _____ 1. By what should you multiply both sides of the equation to solve 3x 5 1 ? x 9 x 3 2x 6 2 (A) 2( x 3)( x 3) (D) x 2 9 (C) 2( x 3) (B) x + 3 _____ 2. Which represents an inverse variation? (A) y = 3xz (C) y (B) y = 12x 5 x (D) y f ( x) _____ 3. Which is a point of discontinuity in the graph of (A) (11, 0) (C) (–11, –22) (B) (11, 22) _____ 4. Suppose p varies inversely as q. If p x 5 x 2 121 ? x 11 (D) there are none 1 when q = 10, 10 determine q when p = 5. (A) 20 (B) 1 5 (C) 1 2 (D) none of these _____ 5. Suppose n varies jointly as e and d. If n = 120 when e = 5 and d = 6, determine d when n = 96 and e = 3. (A) 8 (B) 16 (C) 12 (D) 1152 _____ 6. Which represents a vertical asymptote of y (A) x = 3 (B) y = 0 5 ? x3 (D) x = –3 (C) y = 5 _____ 7. Suppose y varies directly as x. If x = 6 when y = 8, determine y when x = 4. (A) 3 (B) 3 4 (C) 4 3 (D) 16 3 II. Simplify each rational expression, stating any restrictions on the variables. 6u 3 v 2 w ___________ 8. 11u 2 w2 ___________ 9. ___________ 10. d 2 81d d 81 x9 x 6 x 27 2 III. Perform the indicated operation and simplify. ___________ 11. x 2 7 x x 2 4 x 21 x 2 49 x 2 3x ___________ 12. 4 f 3 5 f 1 4 f 3 1 5 f ___________ 13. x3 2 x 2 63x x 2 81 2 x 2 49 x 7x ___________ 14. 5y 1 y4 2 y 6 5 y 15 ___________ 15. 9 1 5x 6 x ___________ 16. 2z 1 4 2 z 5 z 3 z 10 IV. Simplify ___________ 17. ___________ 18. 3 d a 5 6 5 a b 1 1 2a 2b 2k k 4k 3 1 2 k 3 k 1 2 ___________ 19. V. Solve and Check. ___________ 20. ___________ 21. ___________ 22. 7 3 5 6x x 6 8 8 2 p3 p 3 1 6 1 2 x5 x5 x 25 VI. Word Problem ___________ 23. The velocity of a river is 2.5 miles per hour. Moving with the current, a boat can travel 15 miles in the same amount of time that it would take to go 5 miles moving against the current. Determine the boat's rate in still water.