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anonymous

  • 5 years ago

f(x)=7/8|X+3|-9 Graph and tell what the following are: Does it open up or down Wider,narroweer,or same vertex?

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  1. anonymous
    • 5 years ago
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    Which one are you having trouble with?

  2. anonymous
    • 5 years ago
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    the vertex?

  3. anonymous
    • 5 years ago
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    Remember when you have f(x)=a|x-h|+k, the vertex is (h,k)

  4. anonymous
    • 5 years ago
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    i know but i am still having trouble

  5. anonymous
    • 5 years ago
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    do you know what k is?

  6. anonymous
    • 5 years ago
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    no nither H

  7. anonymous
    • 5 years ago
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    f(x)=a|x-h|+k f(x)=a|x+3|-9 What if i place them like this? Note that a=7/8 on the second one. Removed so they line up better

  8. anonymous
    • 5 years ago
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    okay so H is -9 right?

  9. anonymous
    • 5 years ago
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    and k is 7/8

  10. anonymous
    • 5 years ago
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    Look again and see which one goes with the h and which one goes with the k. They are lined up on top of each other

  11. anonymous
    • 5 years ago
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    oh h is 3 and k is -9

  12. anonymous
    • 5 years ago
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    Be careful with the h. Notice the sign change. You can solve it by equating whats inside the abs So, x-h=x+3.

  13. anonymous
    • 5 years ago
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    so its -3 and -9 and it's narrower and opens up?

  14. anonymous
    • 5 years ago
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    It opens up but its not narrower. See |a|<1 where a=(7/8). So it's wider

  15. anonymous
    • 5 years ago
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    oh okay. is my vertex right -3,-9

  16. anonymous
    • 5 years ago
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    Yeah

  17. anonymous
    • 5 years ago
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    okay thank you.

  18. anonymous
    • 5 years ago
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    Np

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