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Relationship between solution and corresponding graph

  1. May 23, 2016 #1
    1. The problem statement, all variables and given/known data
    upload_2016-5-23_21-42-46.png

    2. Relevant equations
    none

    3. The attempt at a solution

    Here is my answer for part A of this question:
    upload_2016-5-23_21-48-58.png

    Part B:
    This is where I am having trouble.

    I took a guess at this, but it is probably completely wrong:

    The corresponding graph shows the profit when different amounts are spent. The x-intercepts show the amount spent when the profit is $0.

    I get this is most likely wrong, so can someone please explain to me the relationship between the graph and my solution? or at least lead me in the right direction to forming an answer.

    Thanks.
     
  2. jcsd
  3. May 23, 2016 #2

    Ray Vickson

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    Science Advisor
    Homework Helper

    Why would you think it is wrong? It looks 100% correct to me.
     
  4. May 23, 2016 #3
    Okay, I just took a guess for part b, and wrote the first thing I saw when I looked at the graph, I didn't think it was correct :/

    Anyway, thanks for verifying my answer :biggrin:
     
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