3/21/2014 USNA Mathematics Department Practice Placement Exam USNA Mathematics Department Practice Placement Exam Answers 1. (a) 1 (b) ­7 (c) 17 (d) 8 (e) 0 b is correct. 2. (a) , (b) , (c) , (d) , (e) none of the above. c is correct. 3. The following are factors of : (a) file:///home/wdj/committee/VandP/VandP-sample-precalc-test/validation_test3/validation_test3_answers.html 1/5 3/21/2014 USNA Mathematics Department Practice Placement Exam (b) (c) (d) (e) . c is correct. 4. If then which of the following best describes the values of for which ? (a) (b) (c) or (d) (e) . c is correct. 5. If then (a) (b) (c) (d) (e) file:///home/wdj/committee/VandP/VandP-sample-precalc-test/validation_test3/validation_test3_answers.html 2/5 3/21/2014 USNA Mathematics Department Practice Placement Exam c is correct. 6. Which of the following best describes the solution set to . (a) (b) (c) or (d) (e) . d is correct. 7. (a) (b) (c) (d) (e) . c is correct. 8. An equation of a line through having slope is (a) (b) file:///home/wdj/committee/VandP/VandP-sample-precalc-test/validation_test3/validation_test3_answers.html 3/5 3/21/2014 USNA Mathematics Department Practice Placement Exam (c) (d) (e) b is correct. 9. What is the area of the triangle with vertices at , , ? (a) 2 (b) 3 (c) 3/2 (d) 6 (e) 4 b is correct. 10. If then (a) (b) (c) (d) (e) . b is correct. file:///home/wdj/committee/VandP/VandP-sample-precalc-test/validation_test3/validation_test3_answers.html 4/5 3/21/2014 USNA Mathematics Department Practice Placement Exam created 3­20­2000 by Prof. David Joyner. Last modified 4­28­2000. file:///home/wdj/committee/VandP/VandP-sample-precalc-test/validation_test3/validation_test3_answers.html 5/5