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carlenstar281 Group Title

math question help

  • one year ago
  • one year ago

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  1. aajugdar Group Title
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    shoot

    • one year ago
  2. carlenstar281 Group Title
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    is the line up or down for graphing y = –2x² + 2

    • one year ago
  3. electrokid Group Title
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    1) this is a quadratic and cannot be a "line". It is a "curve"

    • one year ago
  4. carlenstar281 Group Title
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    thats what i mean sorry is the curve up or down

    • one year ago
  5. electrokid Group Title
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    2) we then check the coefficient of the highest power of "x"

    • one year ago
  6. carlenstar281 Group Title
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    i put it as down but im not sure

    • one year ago
  7. electrokid Group Title
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    it will first increase from -infinity, then reach a maximum and then decrease

    • one year ago
  8. carlenstar281 Group Title
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    okay i get that

    • one year ago
  9. carlenstar281 Group Title
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    so does it look like this then

    • one year ago
  10. electrokid Group Title
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    |dw:1364413141919:dw|

    • one year ago
  11. carlenstar281 Group Title
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    sorry i couldn't draw it

    • one year ago
  12. electrokid Group Title
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    looks like this. I cannot see your picture.

    • one year ago
  13. carlenstar281 Group Title
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    oh sorry it was a pic that looked like the one you drew except the curve was under the x axis is that correct?

    • one year ago
  14. electrokid Group Title
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    yep. So, it first increases and then decreases. did you study derivatives?

    • one year ago
  15. carlenstar281 Group Title
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    yes and thank you :)

    • one year ago
  16. cahit Group Title
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    curve is under the x axis and downward.. at x = 0 it peak

    • one year ago
  17. cahit Group Title
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    at y =0 you can find x value and at x= 0 find value of y...

    • one year ago
  18. electrokid Group Title
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    if you had studied derivatives, this becomes way easier

    • one year ago
  19. carlenstar281 Group Title
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    just a little bit and thank you again all for helping

    • one year ago
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