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mskyeg

Compare each function with the parent function. Without graphing, what are the vertex, axis of symmetry, and transformations of the parent function? y = –|8x + 4| – 2

  • one year ago
  • one year ago

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  1. mskyeg
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    Possible answers: (1/2,2) ; x=-1/2 ; translated to the left 1/2 unit and up 2 units. (-1/2,-2) ; x=-1/2 ; translated to the left 1/2 unit, up 2 units, and reflected in the x-axis. (1/2,2) ; x=1/2 ; translated to the right 1/2 unit and up 2 units, and reflected in the y-axis. (1/2,-2) ; x=1/2 ; translated to the right 1/2 unit and up 2 units

    • one year ago
  2. Hero
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    First thing you should ask yourself is, "What is the parent function?". When you figure that out, you'll be half way there.

    • one year ago
  3. mskyeg
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    is it y=lxl

    • one year ago
  4. Hero
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    Yup

    • one year ago
  5. mskyeg
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    what do i do next?

    • one year ago
  6. Hero
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    Well, one thing you can do is insert the possible (x,y) values into the formula to see which ones work. Once you do that, you should be able to eliminate at least two of the answers.

    • one year ago
  7. mskyeg
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    what?

    • one year ago
  8. mskyeg
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    i am so confused

    • one year ago
  9. Hero
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    Are you not given (x,y) = (1/2, 2) ? Try that and see if it works. If not, try (x,y) = (-1/2,2)

    • one year ago
  10. Hero
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    Watch me plug one of the values into the formula: y = –|8x + 4| – 2 (2) = -|8(1/2) + 4| - 2

    • one year ago
  11. Hero
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    Does that make any sense?

    • one year ago
  12. mskyeg
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    i think so

    • one year ago
  13. mskyeg
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    oh wait ya thats simple

    • one year ago
  14. mskyeg
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    but that only eliminates 2 of the answers what about the last two

    • one year ago
  15. mskyeg
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    its not 1 or 3 right?

    • one year ago
  16. Hero
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    There's only one possible right answer. I just checked again. If you do the arithmetic properly, you should be able to find it.

    • one year ago
  17. Hero
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    You're on the right track.

    • one year ago
  18. mskyeg
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    is it number 2?

    • one year ago
  19. Hero
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    The second option is correct.

    • one year ago
  20. mskyeg
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    yay:) thank you so much:)

    • one year ago
  21. Hero
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    Good job. Sometimes you have to think outside the box with these questions.

    • one year ago
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