Intermediate Algebra Review Questions for Computer Enhanced Exam MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Decide whether the relation defines a function. 1) (6,7), (6,9), (1,4), (4,4), (8,1) A) Not a function B) Function Find the domain and range. 2) (4,4), (1,1), (2,8), (2,3)} A) domain = {-4,8,1,3}; range = {-4,-2,-1} C) domain = {-4,-2,-1}; range = {4,8,1,3} Given the function, find the indicated value. 3) Find f(-2) when f(x) = 2x2+4x+4. A) 20 B) 0 B) domain = {-4,-2,-1,2}; range = {-4,8,1,3} D) domain = {-4,-2,-1,-12}; range = {-4,8,1,3} C) -4 D) 4 Solve the system by graphing. 4) y – 4x = 2 5y = 20x + 10 6 y 4 2 x -6 -4 -2 2 4 6 -2 -4 -6 The x-value of the solution is: A) -1.5 B) 1 Solve the system. 5) 2x + 3y = -5 3x – 5y = 21 The y-value of the solution is: A) 2 B) 7 C) Infinite # of solutions D) No solution C) -3 D) No solution C) 16 p12 D) 16 p7 Simplify the expression. 6) 4 p 4 p 3 A) p7 16 4 B) 16 p12 Simplify the expression. Write the answer with positive exponents. 7) 4 x11 y12 z 7 2 x 3 y 9 z10 x8 y 3 2z 3 A) B) 2 x 8 y 3 C) x 8 y 3z 3 D) 2 x 8 y 3 z3 Simplify. Use positive exponents to write the answer. 8) x x x 7 5 4 2 8 A) x 4 B) 1 x 11 C) 1 x 43 D) x 43 Find the degree of the polynomial and indicate whether the polynomial is a monomial, binomial, trinomial, or none of these. 9) 10 x 4 3w3 7 w 5 y 5 4 A) degree 5; trinomial B) degree 5; none Perform the indicated operations. 10) 9x 2 9 x 4 4 6 x 3 5 2 x 3 5x 4 3x 2 C) degree 13; trinomial D) degree 14; binomial A) 4 x 4 8x 3 12 x 2 9 B) 14 x 4 8x 3 12 x 2 9 C) 4 x 4 4 x 3 6x 2 1 D) 14 x 4 8x 3 12 x 2 1 Multiply. 11) (-5x + 3y) (2x – 12y + 1) 12) A) 10x 2 60 xy 5x 36 y 2 B) 10 x 2 66 xy 66 y 2 C) 10 x 2 66 xy 5x 36 y 2 3 y D) 10 x 2 6 xy 5x 36 y 2 3y (-6 + x) (4x – 8) A) x 2 32 x 32 13) C) 4 x 2 33x 48 D) 4 x 2 32 x 48 B) 4 x 2 24 xy 9 y 2 C) 16 x 2 24 xy 9 y 2 D) 4 x 2 9 y 2 (4 x 3 y ) 2 A) 16 x 2 9 y 2 14) B) 4 x 2 48x 32 4 4 x x 6 6 4 4 2 A) x x 3 9 2 B) x 4 9 2 C) x 4 4 x 3 9 D) x 2 4 9 Factor the trinomial. 15) 12 x 2 y 2 11xy 2 15y 2 A) 3x 5 y4x 3 y B) y 2 x 512 x 3 C) 4x 5 y3x 3 y D) y 3 x 54 x 3 2 Factor the polynomial. 16) 3x 6 y 2 81y 2 2 A) 3 y x 2 3 x 4 3x 2 9 2 D) 3 y C) prime polynomial 17) 9 2 2 4 3x 2 49 x 2 16 A) 18) x 3x B) 3 y x 2 3 x 4 3x 9 7 x 42 B) 7 x 47 x 4 C) prime polynomial B) 2x y 2x 5 C) 3 2 , 5 3 C) , 9 20 p C) D) 7 x 4 2 4 x 2 2 xy 10 x 5 y A) 2x y 2x 5 2x 5 y 2x 1 D) prime polynomial 3 3 5 2 D) 20 p 9 D) 45 p2 90 p 45 4 p3 D) ts ts Solve the equation by factoring. 19) 9b2 21b 1 9 5 2 A) , 3 3 B) 5 2 , 3 3 Divide. Simplify the answer. 20) 5p 5 9 p 9 p 4 p2 A) 20 p 3 20 p 2 9 p2 9 p B) Perform the indicated operations. Simplify the answer. 21) 15s2 8st t 2 2 s2 7 st 3t 2 10s2 3st t 2 2 5s2 14 st 3t 2 t 2 2 st 3s2 5s 6st t 2 A) t 5s 2 2s t 2 4s t 2 t 2 s 2 B) t 5s t s t s C) 1 Perform the indicated operations. Simplify the answer. 22) 3 7 2 y 3y 2 y 1 2 A) 10 y 11 B) y 1 y 1 y 2 10 y 11 y 1 y 2 C) 4 y 17 D) y 1 y 1 y 2 11 y 10 y 1 y 1 y 2 Simplify the complex fraction. 2 x x 1 3 6 12 A) x 4 23) B) 12 C) x 12 D) 1 Solve the equation. 24) 1 3 3 2 x 7 x 4 x 11x 28 A) B) 0 C) -7 D) 4 Find the cube root. Round to the nearest thousandth, if necessary. 25) 3 x 12 64 y 6 4 y2 A) x4 x4 B) 4 y2 x3 C) 4 y3 x4 D) 16 y 2 Use radical notation to write the expression. Simplify if possible. 26) 7x 2 5 7 x5 A) B) 5 49 x 2 5 C) 7 x 2 D) 5 7x2 Write with positive exponents. Simplify if possible. 27) 32 25 A) -125 28) 32 A) 1 125 B) 125 C) B) 16 C) D) 1 125 4 5 1 16 1 16 D) not a real number Use the properties of exponents to simplify the expression. Write with positive exponents. 29) x 4 5 x A) x 6 5 3 7 1 1 x 105 B) x 1 105 C) 1 181 x 105 D) x 181 105 Use the product rule to multiply. Assume all variables represent positive real numbers. 13x 2 13x 5 30) 169 x 8 A) B) 13x 4 C) x 4 26 D) 13x 3 x Simplify the expression. Assume all variables represent positive real numbers. 3 31) 54 x 7 3 2x B) x 2 3 3 A) 3 x 2 C) x 2 3 2 D) 3x 2 3 x Add or subtract. Assume all variables represent positive real numbers. 3x 3 3x 27 x 2 7 27 x 4 32) B) x 3x 12 x 2 3 A) 13x 2 3 C) x 3x 12 x 2 3 D) x 3x 12 x 2 3 Multiply, and then simplify if possible. Assume all variables represent positive real numbers. 33) 4 5 7 5 5 4 A) 28 20 52 16 5 B) 48 5 16 C) 65 5 D) 128 51 5 Rationalize the denominator. Assume all variables represent positive real numbers. 34) 2 4 a3 24 a 3 B) a 24 a A) a 24 a 2 C) a D) 24 a 2 5 8 35) A) 10 8 2 59 B) 10 8 2 59 C) 3 10 5 2 40 D) 10 8 2 13 Solve. 36) 4 s 1 8 0 A) 8 37) B) 4096 C) -4096 D) C) 20 km D) 24 km Find the length of the unknown side of the triangle. 15 km A) 18 km 25 km B) 25 km Perform the indicated operation. Write the result in the form a + bi. 38) 10 3i 2 A) 109 60i B) 100 9i C) 91 60i D) 100 9i Simplify. 39) 2 3i 2i 3 i A) 2 B) 3 i 2 C) 3 i 2 D) 3 i 2 Use the square root property to solve the equation. Round to the nearest tenth, if necessary. 40) p 22 6 A) 2 i 6 B) 2 i 6 , 2 i 6 C) 2 i 6 Use the quadratic formula to solve the equation. 41) 7 x 2 6 5x A) 5 143 5 143 , 14 14 B) 5 i 143 5 i 143 , 14 14 C) 5 i 143 5 i 143 , 14 14 D) 5 143 5 143 , 14 14 D) 2 i 6 , 2 i 6 Intermediate Algebra Review Questions for Computer Enhanced Exam Answer Key 1. A 22. C 2. C 23. A 3. D 24. A 4. C 25. B 5. C 26. C 6. D 27. C 7. D 28. C 8. C 29. B 9. B 30. D 10. C 31. A 11. C 32. D 12. D 33. D 13. C 34. A 14. B 35. A 15. D 36. D 16. D 37. C 17. C 38. C 18. A 39. A 19. D 40. D 20. C 41. B 21. D -1-