Home > Final Exam Review, MAT12x - Intermediate Algebra > MAT12x – Final Exam Review Worked Solutions

MAT12x – Final Exam Review Worked Solutions

 

Download the MAT 12x Final Exam Review packet.

Download the MAT 12x Final Exam Review packet ANSWER KEY.

See links below for worked solutions to the MAT12x final exam review. The audio for these links is important so be sure to use headphones or access the sound on your computer.

1 , 2 , 3 , 4 , 5 , 6 , 7a , 7b-7e, 7f-7g , 8 , 9 , 10

 

11, 12a-12b , 12c-12f , 13 , 14 , 15 , 16 , 17 , 18 , 19 

Note that problems 20 – 28 are no longer covered in this class and will not be on the final exam. 

2021 , 22 , 23 , 24, 25 , 26, 27 , 28 

 

29 , 30, 31 , 32 , 33a – 33b , 33c , 33d , 34 , 35 , 36 , 37, 38 , 39 , 40

 

41 , 42 , 43 , 44 , 45

If you have questions about these solutions, post a comment here and someone will get back to you.

  1. Lauren Skarka
    11/20/2009 at 7:45 pm

    Hi…this was very helpful! Thank you! Are there any more pages?

  2. 11/21/2009 at 12:56 am

    Hi, Lauren…

    Yes, all pages should be posted by the end of the month or close to it.

    Thanks,
    Dr. Gaudet

  3. Jon Myles
    05/06/2010 at 9:19 pm

    Very clearly demonstrated with the calculator help and all.

  4. McKenna Hans
    12/13/2010 at 2:16 pm

    On number 45 part b the demonstrated answer is (0,15) but it is actually (0,-15).

  5. McKenna Hans
    12/13/2010 at 2:17 pm

    This website was very helpful.

  6. joe ricciardi
    05/10/2011 at 12:30 pm

    awesome!

  7. Leslie Mazion
    05/07/2012 at 3:36 pm

    Do not explain problem 5 very well for final. I’m not sure where to go either.

    • dgaudet
      05/07/2012 at 3:47 pm

      Hi, Leslie…thanks for your feedback. I took a look at the Livescribe and I agree with you that the explanation, without reference to the graph, is potentially confusing. Take a look at this solution and see if it helps. There is no audio but hopefully the picture, along with the audio part of the Livescribe you watched, will help make things more clear.
      Problem5_help

      Thanks for using this site! Dr. Gaudet

  8. Ashley Backlund
    12/11/2012 at 12:33 pm

    I don’t understand how you’re getting your answers for 27 and 28

    • dgaudet
      12/11/2012 at 1:29 pm

      Hi, Ashley…the trick on those is to enter one side of each equation into the Y1 slot in your calculator and the other side in for Y2. Press Window to change the window to the values indicated. Then, use 2nd>Calc>Intersect and press the enter button three times to see the intersection and obtain the solution to the equation. Hope this helps!

  9. Drew O'Connor
    05/03/2013 at 10:08 pm

    On question 53, I am getting 11+41/32 and I am not getting the right answer no matter what I do. Why is this??

    And on 55, I am putting 3x/5-x in y1. my graph is nothing like yours.

    • dgaudet
      05/04/2013 at 5:24 am

      Hi, Drew…

      On 53, factor the top as (x – 4)(x + 4) and then the fraction will reduce to x – 4.

      On 55 be sure you are putting ( ) around the 5 – x in the denominator to get the correct graph.

      Hope this helps!

  10. erika
    05/05/2013 at 2:49 pm

    okay I don’t know if I am the only person who clicks on numbers 23-32, but when I click to open the solutions, I get directed to the livescribe website and not the solutions where you are talking through them!!

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