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Find the area of the region

  1. Dec 10, 2016 #1
    • Member warned to include complete problem description and template
    1. f_-2^{5} 1x-2dx.


    2. 1. f_a^{b}f(x)dx


    3. x^2/2 -2(x)|_-2^5
    25/2-2(5)-(4/2-2(-2))=-7/2

    What am I doing wrong?
     
  2. jcsd
  3. Dec 10, 2016 #2

    Ray Vickson

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    What makes you think you have done something wrong?
     
  4. Dec 10, 2016 #3
    When I put the answer to my online assignment thing it says incorrect
     
  5. Dec 10, 2016 #4
    Allegedly the answer is 12.5 but I don't know how the computer got that
     
  6. Dec 10, 2016 #5

    Mark44

    Staff: Mentor

    Please take some time to look at our LaTeX tutorial - https://www.physicsforums.com/help/latexhelp/. Your post is just about incomprehensible.

     
  7. Dec 10, 2016 #6

    Ray Vickson

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    So you must think more about the meaning of the word "area". Draw the graph of ##y = x-2, \: -2 \leq x \leq 5##. What are you actually computing when you calculate the integral ##\int_{-2}^5 (x-2) \, dx##?
     
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