CUNY Elementary Algebra Final Exam
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1 CUNY Elementary Algebra Final Exam Problem Sets November 2012 For the most up-to-date information on this exam, please visit Copyright 2012 The City University of New York
2 CUNY Elementary Algebra Final Exam Format: 25 multiple choice questions (4 choices each) Students will have 100 minutes to complete the exam. No calculators will be allowed on the exam. The exam will be administered on a computer. Test Taking Tips/Strategies: Read each question completely and carefully before you begin any calculations. Pace yourself so that you don t spend too much time on one question. Stay calm and focus on the exam until you are finished. Copy down all relevant information from the example on scrap paper including all the formulas that you have memorized. Draw a diagram where needed. Begin solving the problem neatly step by step on the scrap paper. Don t forget to answer all parts of the question. Try to solve the problem before looking at the choices. Reread the problem before choosing an answer to make sure you are answering the question that was asked. Check your work. If you are unable to arrive at a correct answer, look at the choices and use the process of elimination to make an educated guess. Make sure you have answered all the questions. Don t leave any questions blank! Take Sample Final Exams online at [1]
3 1. Simplify. ( ) Problem Set I Take Sample Final Exams online at A) B) C) D) 2. Simplify. A) B) C) D) 3. Multiply. Answer must be in scientific notation. 4. Simplify and write with positive exponents. 5. Translate the sentence into an equation. Eight less than three times a number is equal to the sum of a number and four. 6. Simplify. [2]
4 7. Multiply. 8. Multiply. 9. Divide. 10. Factor Completely. A) B) C) D) 11. Which of the following is a factor of the polynomial? 12. Which of the following is a factor of the polynomial? [3]
5 13. Factor Completely. A) B) C) D) 14. Translate and Solve. Nine is three times the difference between a number and two. 15. Solve. 16. What is the value of the -coordinate of the solution to the following system of equations? 17. Solve for t. 18. Solve for all values of A) B) or C) or D) or [4]
6 19. Solve for all values of n. 20. Solve for all values of x. 21. Olivia runs meters diagonally across a rectangular field that has a width of meters. Find the length of the rectangular field. A) meters B) meters C) meters D) meters 22. Solve. 23. Find the graph of the solution to the inequality. A) B) C) D) 24. If, find. [5]
7 25. Find the equation of the line that passes through the points and. Write the equation in slope- intercept form. 26. Find the equation of the vertical line that passes through the point. 27. Find the slope and intercept of the line. A) and B) slope and C) slope and D) and 28. If a car travels miles in hours, at the same speed how long will it take to travel miles? A) hours B) hours C) hours D) hours 29. You would like to purchase a new car from the dealer listed for. After negotiating, you agree to pay $20,000 for the new car. What is the percent decrease? [6]
8 30. Which of the following is the graph of the equation 9? A) B) C) D) [7]
9 Answer Key - Problem Set I Question Number 1. A 2. A 3. C 4. D 5. B 6. D 7. C 8. A 9. B 10. D 11. D 12. A 13. B 14. C 15. D 16. B 17. A 18. B 19. B 20. C 21. B 22. D 23. C 24. B 25. D 26. A 27. D 28. C 29. B 30. A Correct Answer Take Sample Final Exams online at [8]
10 Solution Guide to Problem Set I 1. Simplify. ( ) Use the Distributive Property. 4. Simplify and write with positive exponents. Note: If Choice A 2. Simplify. Choice A 5. Translate the sentence into an equation. Eight less than three times a number is equal to the sum of a number and four. Note: less than reverses the terms in the equation Let be a number. three times a number : Eight less than three times a number : sum of a number and four : Choice B 3. Multiply. Answer must be in scientific notation. Move the decimal point one place to the left and add 1 to the exponent. 6. Simplify. Add coefficients of like terms. Choice C [9]
11 7. Multiply. Use the Distributive Property. Choice C 8. Multiply. Note: Let and Choice A 9. Divide. Divide each term in the numerator by the denominator. Note: If 10. Factor Completely. Factor the Greatest Common Factor (GCF) from each term. Use the Difference of Two Squares. [ ] [] 11. Which of the following is a factor of the polynomial? Factor by grouping. = Find the factors of 40 whose sum is. Rewrite as. The factors are and 12. Which of the following is a factor of the polynomial? Factor by grouping. Factor the Greatest Common Factor (GCF) from each set of parentheses. The factors are and. Choice A Choice B [10]
12 13. Factor Completely. Factor the Greatest Common Factor (GCF) from each term. Factor by grouping. = Find the factors of whose sum is and Rewrite Choice B as [ ] [ ] 14. Translate and Solve. Nine is three times the difference between a number and two. Let be a number. 9 is 3 times (difference between and 2) 16. What is the value of the -coordinate of the solution to the following system of equations? (1) (2) Eliminate the variable. Multiply equation (1) by new equation (1) Add new equation (1) and equation (2) Choice B 17. Solve for t. or Choice A Choice C 15. Solve. Simplify both sides of the equation. 18. Solve for all values of Set each factor equal to zero and solve. Isolate the variable. Choice B [11]
13 19. Solve for all values of n. Factor the Greatest Common Factor (GCF). Set each factor equal to zero and solve. Choice B 21. Olivia runs 10 meters diagonally across a rectangular field that has a width of 6 meters. Find the length of the rectangular field. Draw a diagram and label the given sides. 6m 10m b Use Pythagorean Theorem to solve the right triangle: where is the hypotenuse. Let, and 20. Solve for all values of x. Choice B 22. Solve. Factor using the Difference of Two Squares. Set each factor equal to zero and solve. Note: Reverse the inequality sign when multiplying or dividing by a negative number. Choice C [12]
14 23. Find the graph of the solution to the inequality Solve the inequality. 25. Find the equation of the line that passes through the points and. Write the equation in slope intercept form. Find the slope of the line using slope formula: Note: Reverse the inequality sign when multiplying or dividing by a negative number. is greater than Choice C Use one of the given points, the slope and the point-slope formula to find the equation of the line: ( ) 24. If, find. Substitute for. 26. Find the equation of the vertical line that passes through the point. The equation of a vertical line passing through the point is. ; Choice B Choice A [13]
15 27. Find the slope and y-intercept of the line. Write the equation in slope-intercept form, by solving for. The slope of the line is m and the -intercept is. 29. You would like to purchase a new car from the dealer listed for $25,000. After negotiating, you agree to pay $20,000 for the new car. What is the percent decrease? -intercept: 28. If a car travels 350 miles in 5 hours, at the same speed how long will it take to travel 560 miles? Choice B 30. Which of the following is the graph of the equation 9? Write and solve a proportion using represent hours. Reduce each ratio, if possible. to Find both intercepts of the line: -intercept -intercept: let -intercept -intercept: let Cross multiply and solve for. -intercept: Choice A -intercept: Choice C [14]
16 1. Simplify. ( )( ) Problem Set II Take Sample Final Exams online at A) B) C) D) 2. Simplify. A) B) C) D) 3. Write the number 23,000,000 in scientific notation. 4. Evaluate. Answer must be in scientific notation. 5. Simplify. A) B) C) D) [15]
17 6. Translate the sentence into an equation. Twelve subtracted from seven times a number is equal to the square of a number. 7. Simplify. 8. Multiply. 9. Divide. 10. Factor Completely. A) B) C) D) [16]
18 11. Which of the following is a factor of the polynomial? 12. Which of the following is a factor of the polynomial? 13. Factor Completely. A) B) C) D) 14. Translate and Solve. Four times a number is twice the difference between a number and three. 15. Solve. [17]
19 16. What is the value of the coordinate of the solution to the following system of equations? 17. Choose the graph that shows the solution to the system. A) B) C) D) [18]
20 18. Solve for w. 19. Solve for all values of t. A) B) C) D) 20. Solve for all values of x Find the missing side of the right triangle. A) B) C) D) [19]
21 22. Find the graph of the solution to the inequality. A) B) C) D) 23. If, find. A) B) C) D) 24. Find the equation of the line that passes through the points and. Write the equation in slope intercept form. 25. Find the equation of the horizontal line that passes through the point. [20]
22 26. Find the slope and y intercept of the line. A) and B) and C) D) 27. Find the equation of the line that passes through the point and has slope. 28. If it takes cup of vegetable oil to make cupcakes, how many cupcakes can be made with ups of vegetable oil? A) cupcakes B) cupcakes C) cupcakes D) cupcakes 29. Your annual salary is. If you get a bonus this year, what is your total salary this year? [21]
23 30. Which of the following is the graph of the equation? A) B) C) D) [22]
24 Answer Key - Problem Set II Question Number 1. C 2. D 3. A 4. A 5. D 6. B 7. D 8. A 9. C 10. A 11. C 12. B 13. D 14. C 15. A 16. D 17. A 18. B 19. D 20. B 21. C 22. D 23. A 24. D 25. D 26. A 27. B 28. C 29. C 30. C Correct Answer Take Sample Final Exams online at [23]
25 Solution Guide to Problem Set II ( )( ) 1. Simplify. ( )( ) ( )( ) ( )( ) ( )( ) Rationalize the denominator. 4. Evaluate. Answer must be in scientific notation. = Move decimal point one place to the left and add 1 to the exponent. Choice C 2. Simplify. 3. Write the number 23,000,000 in scientific notation. Move the decimal point seven places to the left. Choice A Choice A 5. Simplify. = = 6. Translate the sentence into an equation. Twelve subtracted from seven times a number is equal to the square of a number. Note: subtracted from reverses the terms in the equation Let be a number. seven times a number : Twelve subtracted from seven times a number : square of a number : [24] Choice B
26 7. Simplify. Add the coefficients of like terms. 10. Factor Completely. Factor the Greatest Common Factor (GCF) from each term. Use the Difference of Two Squares. Choice A [ ] [] 8. Multiply. Use the Distributive Property. Choice A 11. Which of the following is a factor of the polynomial? Factor by grouping. = Find the factors of whose sum is. Rewrite as The factors are and. Choice C 9. Divide. Divide each term in the numerator by the denominator. Note: If, then. 12. Which of the following is a factor of the polynomial? Factor by grouping. Factor the Greatest Common Factor (GCF) from each set of parentheses. The factors are and Choice B Choice C [25]
27 13. Factor Completely. Factor the Greatest Common Factor (GCF) from each term. Note: [ ] 15. Solve. Simplify both sides of the equation. Isolate the variable. Choice A 14. Translate and Solve. Four times a number is twice the difference between the number and three. Let be a number. is (difference between and ) 16. What is the value of the -coordinate of the solution to the following system of equations? (1) (2) Eliminate the variable. Multiply equation (1) by 3 and equation (2) by 4 new equation (1) Add the new equations (1) and (2) new equation (2) Choice C [26]
28 17. Choose the graph that shows the solution to the system. Line : Line : 19. Solve for all values of t. Graph both equations on the same coordinate system. Line 1 Line 2 Take the square root of both sides of the equation. -intercept : let -intercept: let -intercept: -intercept: -intercept : Let -intercept: Let or -intercept: -intercept: Points on Line 1: and Choice A Points on Line 2: and 18. Solve for w. 20. Solve for all values of x. 8 Set the equation equal to zero: Factor the Greatest Common Factor. Set each factor equal to zero and solve. or Choice B Choice B [27]
29 21. Find the missing side of the right triangle. b Use Pythagorean Theorem to solve the right triangle: where c is the hypotenuse. Let 23. If, find Substitute for. Choice A Choice C 22. Find the graph of the solution to the inequality. Solve the inequality. 24. Find the equation of the line that passes through the points and. Write the equation in slope-intercept form. Find the slope of the line using slope formula: Note: Reverse the inequality sign when multiplying or dividing by a negative number. is less than -7 Let and use the point-slope formula to find the equation of the line: ( ) 25. Find the equation of the horizontal line that passes through the point. The equation of a horizontal line passing through a point is. ; [28]
30 26. Find the slope and -intercept of the line. Write the equation in slope-intercept form, by solving for. The slope of the line is m and the -intercept is and -intercept: Choice A 27. Find the equation of the line that passes through the point (-3, 4) and has slope. Use the point-slope formula to find the equation of the line: Let and ( ) 29 Your annual salary is $55,000. If you get a 30% bonus this year, what is your total salary this year? Total Salary Bonus 30% of $55,000 Bonus Bonus Total Salary Total Salary Choice C Annual Salary + Bonus 30. Which of the following is the graph of the equation? Find both intercepts of the line: -intercept -intercept: let -intercept -intercept: let -intercept: Choice C -intercept: Choice B 28. If it takes cup of vegetable oil to make 6 cupcakes, how many cupcakes can be made with 2 cups of vegetable oil? Write and solve a proportion using number of cupcakes. to represent the Cross multiply and solve for. Multiply both sides of the equation by the reciprocal of the coefficient of : Choice C [29]
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