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MAC 1105

MAC 1105. Test 1 Review and Practice Solutions. MAC 1105 Test 1 Review 1.4 – 1.7.

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MAC 1105

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  1. MAC 1105 Test 1 Review and Practice Solutions

  2. MAC 1105 Test 1 Review 1.4 – 1.7 You will need to have your own graphing calculator for the test. You may not share calculators or use any type of communication device in place of a calculator. Tests cannot be made up for any reason other than an NWFSC event for which you must miss class. If you miss one test, your final exam score will be substituted. A second missed test is a zero.

  3. Exam Topics

  4. To study for the test: • Complete all assigned homework. Remember that a score of at least 70% on each assignment gives you 10 bonus points on the test. • Complete the practice test and check your solutions. • Set up a study system (note cards for example) for each of the 14 objectives in the chart above. • Review your notes and applicable problem set questions for each of the 14 objectives in the chart above. • Work the suggested text problems for each of the 14 objectives in the chart above.

  5. 1) Write the inequality notation for each interval. You do not have to graph the inequality. c) d)

  6. 2) Find the domain of each rational expression. Write your answer in interval notation. a)

  7. 3) Solve.

  8. 4) Indicate the constant that is needed to complete the square. a)

  9. 5) Solve by the quadratic formula:

  10. 6) Use the discriminant of the quadratic equation to determine the number and type of solutions of the equation.

  11. 7) The height of a ball after t seconds when thrown straight up is given by the function When will the height of the ball be 40 feet? • You can solve this on the graphing calculator or by using the quadratic formula. On the graphing calculator: • Place the function in Y1 • Place 40 in Y2 • Graph the function using a window that is large enough to see the curve and the two intersections. [0,10] for x and [0, 200] for y works well. • Use 2ndcalc 5 twice to find both points of intersection. The x coordinates are the two times.

  12. 7) (Quadratic Formula)

  13. 8) Use the intersection-of-graphs method to find the approximate solution to the equation. Please round your answer to the nearest thousandth.

  14. 9) Solve (do not cross multiply):

  15. 10) Solve.

  16. You could also solve by substitution.

  17. 11) Solve.

  18. 12) Solve.

  19. 13) Solve.

  20. 14) Solve.

  21. Additional Practice (Worksheet 6) 1) Solve.

  22. 2) Solve graphically.

  23. 3) Find the discriminant and determine the number and type of solutions.

  24. 4) The height of a ball after t seconds when thrown straight up is given by the function When will the ball reach a height of 70 feet?

  25. On the graphing calculator

  26. 5) Solve by substitution.

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