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Janu16

  • one year ago

The following graph of f(x)=x^2 has been shifted into the form f(x)=(x-h)^2+k

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  1. Janu16
    • one year ago
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    This

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  2. Nnesha
    • one year ago
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    in that equation (h,k) is the vertex point

  3. Janu16
    • one year ago
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    ya so im lookinf for k

  4. Nnesha
    • one year ago
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    y-coordinate of the vertex would be the k |dw:1443886284134:dw| so look at the graph find what's x and y

  5. Janu16
    • one year ago
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    2?

  6. Nnesha
    • one year ago
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    it should be (x,y) pair

  7. Janu16
    • one year ago
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    2,2? not sure

  8. Nnesha
    • one year ago
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    you can draw a vertical line like this |dw:1443886489382:dw| when x = 2 y =-1 so (2,-1)

  9. Janu16
    • one year ago
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    ohhyaa

  10. Nnesha
    • one year ago
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    so what would be the vertex in the given graph ?

  11. Janu16
    • one year ago
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    2?

  12. Janu16
    • one year ago
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    wait

  13. Janu16
    • one year ago
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    -1?

  14. Nnesha
    • one year ago
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    that was an example.

  15. Janu16
    • one year ago
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    ohh so the vertex is -2? cause that dot is on negative line

  16. Nnesha
    • one year ago
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    \[\huge\rm f(x)=a(x-h)^2+k\] vertex form of parabola where (h,k) is the vertex point shape of the parabola depends on the sign of leading coefficient if a is positive then it will opens up|dw:1443886757241:dw| and when a is negative parabola opens down

  17. Nnesha
    • one year ago
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    |dw:1443886878265:dw| that's the vertex

  18. Janu16
    • one year ago
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    oookk

  19. Nnesha
    • one year ago
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    or in other words h = horizontal shift k= vertical shift to find k you should know how many units the graph going up or down from the origin

  20. Nnesha
    • one year ago
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    is*

  21. anonymous
    • one year ago
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    why cant i see the drawing

  22. Janu16
    • one year ago
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    so if you know that you would get the k?

  23. Janu16
    • one year ago
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    you cant see it if you are on the phone app.

  24. Nnesha
    • one year ago
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    yes. so what's the k ?

  25. Nnesha
    • one year ago
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    i'll give u an exxample |dw:1443887248429:dw|

  26. Janu16
    • one year ago
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    -2?

  27. Janu16
    • one year ago
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    thats what i got

  28. Nnesha
    • one year ago
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    |dw:1443887515749:dw| the point is in first quadrant where x and y both are positive

  29. Janu16
    • one year ago
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    ohh so positive 2

  30. Nnesha
    • one year ago
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    yes x =2 but we also need y -coordinate so when x = 2 y = what ?

  31. Janu16
    • one year ago
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    3

  32. Nnesha
    • one year ago
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    right (h,k)= (2,3)

  33. Janu16
    • one year ago
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    so h is 2 aznd k is 3?

  34. Janu16
    • one year ago
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    thx so much nnesha!!

  35. Nnesha
    • one year ago
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    np :=) and yes right k=3

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