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anonymous

  • one year ago

PLEASE HELP!!! Given the function f(x) = x^2 and k = 2, which of the following represents a horizontal shift? A. f(x) + k B. kf(x) C. f(x + k) D. f(kx)

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  1. anonymous
    • one year ago
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    @mathmate

  2. Nnesha
    • one year ago
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    quadratic equation in vertex form \[ y=a(x-h)^2+k\] where k = horizontal shift h=vertical shift (hint: inside the parentheses )

  3. anonymous
    • one year ago
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    so it would be c?

  4. Nnesha
    • one year ago
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    \[\huge\rm y=a(x-\color{reD}{h})^2+\color{blue}{k}\] h is inside the parentheses not k

  5. Loser66
    • one year ago
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    yup

  6. anonymous
    • one year ago
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    oh, so it would be a?

  7. Loser66
    • one year ago
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    c

  8. anonymous
    • one year ago
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    what?

  9. Loser66
    • one year ago
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    (x+h) , this h is adding to x, right? hence the graph moves along x-axis, that is it moves to the right/ left

  10. Loser66
    • one year ago
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    if f(x) + k, that is the whole graph + k. It means the whole graph (y) moves along y axis. Got what I meant?

  11. Loser66
    • one year ago
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    |dw:1439820520241:dw|

  12. anonymous
    • one year ago
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    yes

  13. anonymous
    • one year ago
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    I got what you mean

  14. Loser66
    • one year ago
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    |dw:1439820544584:dw|

  15. Loser66
    • one year ago
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    no confuse anymore, right? hehehe...

  16. anonymous
    • one year ago
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    no I'm not confused anymore :) thank you so much :)

  17. mathmate
    • one year ago
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    \(\huge\rm y=a(x-\color{reD}{h})^2+\color{blue}{k}\) \(h\ne 0\) means horizontal shift, \(k\ne 0\) means vertical shift, example: |dw:1439822841978:dw|

  18. mathmate
    • one year ago
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    * graph should be (x-5)^2+1

  19. mathmate
    • one year ago
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    |dw:1439823426628:dw|

  20. Nnesha
    • one year ago
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    .,-, ahh i messed up sorry i didn't pay attention thanks for catching mathmate!

  21. mathmate
    • one year ago
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    No problem! We all do at different times! lol

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