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adajiamcneal

  • one year ago

please help. im so done with math

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  1. adajiamcneal
    • one year ago
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  2. surry99
    • one year ago
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    hi do you know what the domain and range refer to?

  3. adajiamcneal
    • one year ago
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    no idea

  4. surry99
    • one year ago
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    ok for a graph of y vs x which is what you have, the domain refers to the permissible values of x and the range refers to the permissible values of y

  5. adajiamcneal
    • one year ago
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    wait so how do i find them?

  6. adajiamcneal
    • one year ago
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    @surry99

  7. surry99
    • one year ago
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    ok look at your graph and tell me what is teh lowest value of x possible

  8. adajiamcneal
    • one year ago
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    would it be 2?

  9. surry99
    • one year ago
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    not quite look a little more carefully

  10. adajiamcneal
    • one year ago
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    im confused..

  11. surry99
    • one year ago
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    ok can you see how how as the graph approaches x=1, the values of y go up very quickly?

  12. adajiamcneal
    • one year ago
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    yeah but it never actually hits 1

  13. surry99
    • one year ago
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    exactly, that part of the graph is called an asymptote. So the values of x are always greater than 1 but never equal 1. So the domain would be x>1

  14. adajiamcneal
    • one year ago
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    ohhhh i see i see :)

  15. surry99
    • one year ago
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    See how the x values are always bigger than 1?

  16. surry99
    • one year ago
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    Great....now taek a look at the permissible values for y

  17. surry99
    • one year ago
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    What is y always greater than in the graph?

  18. adajiamcneal
    • one year ago
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    5?

  19. surry99
    • one year ago
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    not quite...can you see the y values are always greater than zero but never equal 0?

  20. adajiamcneal
    • one year ago
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    yeah i see that

  21. surry99
    • one year ago
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    so the domain (permissible values for x) is x> 1 the range (permissible values for y) is y >0. Make sense?

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