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StudyGurl14

  • one year ago

how to find domain? HELP! MEDAL!

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  1. StudyGurl14
    • one year ago
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    |dw:1441919336304:dw|

  2. StudyGurl14
    • one year ago
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    @Nnesha @iambatman @ganeshie8

  3. anonymous
    • one year ago
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    A good way to do these problems is to graph it, so start with the original graph of y = tanx and apply the transformations.

  4. StudyGurl14
    • one year ago
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    I did. But it's kinda hard to tell what values are excluded.

  5. StudyGurl14
    • one year ago
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    Do you know if a TI-84 could tell me?

  6. StudyGurl14
    • one year ago
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    I just got one for my AP Calculus class, but I don't know how to use it.

  7. anonymous
    • one year ago
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    I haven't used a TI 84 in a very long time, but you shouldn't need it. You can tell by the graph, so could you tell me the domain of y = tanx?

  8. StudyGurl14
    • one year ago
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    all real numbers except for kpi/2 ?

  9. anonymous
    • one year ago
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    |dw:1441920593712:dw| this is y = tanx, lets keep it simple how can you defined the domain?

  10. anonymous
    • one year ago
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    I know I'm not a very good artist :P but using a mouse isn't very helpful!

  11. StudyGurl14
    • one year ago
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    pi/2 is excluded, and then...well. its basically pi/2 + kpi right>

  12. StudyGurl14
    • one year ago
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    Okay, so will it be the same for the other equation, or different because of the transformations?

  13. anonymous
    • one year ago
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    Sounds good, assuming k is an integer, now use your transformations and apply the same thing.

  14. StudyGurl14
    • one year ago
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    do i multiply it by 3?

  15. StudyGurl14
    • one year ago
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    1/3rd i mean? for stretch

  16. anonymous
    • one year ago
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    It's the same as regular transformations, so don't let the trig functions scare you. But instead the terms are a bit different, so \[y = a f (b(x-h))+k\] in this case we say a is the amplitude and k is the vertical displacement. Remember amplitude is the distance from the mid to the max or from the mid to the min, so in the graph above |dw:1441921654850:dw|

  17. anonymous
    • one year ago
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    Your mid would be the vertical displacement

  18. StudyGurl14
    • one year ago
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    Umm...since you'rer shifting it by pi, will it be 3pi/2 +kpi?

  19. anonymous
    • one year ago
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    What is the period of your graph?

  20. StudyGurl14
    • one year ago
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    2pi/3

  21. anonymous
    • one year ago
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    tanx is a bit tricky, notice that the period of the original graph is pi

  22. StudyGurl14
    • one year ago
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    oh, i was doing the other equation

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