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anonymous

  • one year ago

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  1. anonymous
    • one year ago
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    @Vocaloid

  2. Vocaloid
    • one year ago
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    well, first start by factoring the numerator

  3. anonymous
    • one year ago
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    |dw:1440350088787:dw| Thats what it looks like

  4. anonymous
    • one year ago
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    im not sure how to factor the top

  5. anonymous
    • one year ago
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    x(x-3...?

  6. freckles
    • one year ago
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    you know @jcoury you don't have to do all that work

  7. anonymous
    • one year ago
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    ?

  8. freckles
    • one year ago
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    all the x values are different in the choices just find when the bottom is zero

  9. anonymous
    • one year ago
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    yeah but that is -4 but look at the answer choices

  10. freckles
    • one year ago
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    there is only one choice with x as -4

  11. freckles
    • one year ago
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    you don't need to find y

  12. anonymous
    • one year ago
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    D?

  13. anonymous
    • one year ago
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    ??

  14. freckles
    • one year ago
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    yep that is the only choice that has x as -4

  15. freckles
    • one year ago
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    however

  16. freckles
    • one year ago
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    if you want to find the y-coordinate you can factor the top and cancel out the common factor of (x+4) after so then plug in x as -4 to find the corresponding y value is -11

  17. anonymous
    • one year ago
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    kk

  18. anonymous
    • one year ago
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    thx

  19. anonymous
    • one year ago
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    that us ut

  20. anonymous
    • one year ago
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    it^

  21. freckles
    • one year ago
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    it might be good practice to do so

  22. anonymous
    • one year ago
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    k

  23. anonymous
    • one year ago
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    can u help with one more @freckles

  24. freckles
    • one year ago
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    k

  25. anonymous
    • one year ago
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    What is the discontinuity and zero of the function f(x) = the quantity of 2 x squared plus 5 x minus 12, all over x plus 4?

  26. anonymous
    • one year ago
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    Discontinuity at (−4, −11), zero at (three halves , 0) Discontinuity at (−4, −11), zero at (negative three halves , 0) Discontinuity at (4, 5), zero at ( three halves , 0) Discontinuity at (4, 5), zero at (negative three halves , 0)

  27. anonymous
    • one year ago
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    |dw:1440350394355:dw|

  28. freckles
    • one year ago
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    so to find the 0 find when the top is 0 that is solve 2x^2+5x-12=0

  29. anonymous
    • one year ago
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    -4,3/2?

  30. freckles
    • one year ago
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    ok but one of those is where you have a discontinuity (a hole in this case) and the other is where you have a zero

  31. anonymous
    • one year ago
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    So can't you just find the answer now without the y's so it would be A?

  32. freckles
    • one year ago
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    that is right a hole at x=-4 and a zero at x=3/2

  33. anonymous
    • one year ago
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    so A

  34. freckles
    • one year ago
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    is that the same question you just asked and I said yes "that is right"

  35. anonymous
    • one year ago
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    yes just making sure because this is an online course and there can be alot of bugs so i wanted to make sure sorry

  36. freckles
    • one year ago
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    np

  37. anonymous
    • one year ago
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    is it okay if i tag you in another question?

  38. anonymous
    • one year ago
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    later?

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