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anonymous

  • one year ago

inverse of each function x=-5 and f(x)=1/5x+5

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  1. Ac3
    • one year ago
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    The first one I believe has no inverse. There has to be 2 variables x and y. Keep in mind f(x) = y. They are the same thing.

  2. Ac3
    • one year ago
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    Now on to the 2nd one.

  3. anonymous
    • one year ago
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    okay. great!

  4. Ac3
    • one year ago
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    Since f(x)=y you can now replace.

  5. Ac3
    • one year ago
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    so the 2nd is...

  6. anonymous
    • one year ago
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    no clue..

  7. Ac3
    • one year ago
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    |dw:1439166103268:dw|

  8. Ac3
    • one year ago
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    Is that how it looks when you replace f(x) with y?

  9. anonymous
    • one year ago
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    when i did it yes.

  10. Ac3
    • one year ago
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    is 5x+5 all in the denominator is what I'm asking.

  11. anonymous
    • one year ago
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    oh.. no

  12. anonymous
    • one year ago
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    its 1/5x

  13. Ac3
    • one year ago
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    draw it just to make sure I do the right one.

  14. anonymous
    • one year ago
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    |dw:1439166389332:dw|

  15. Ac3
    • one year ago
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    Ok I'm going to show the straightforward way.

  16. anonymous
    • one year ago
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    sorry my laptop is being really slow

  17. Ac3
    • one year ago
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    replace y with x so now you have..

  18. anonymous
    • one year ago
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    theres no y.

  19. Ac3
    • one year ago
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    |dw:1439166349292:dw|

  20. Ac3
    • one year ago
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    f(x) is the same thing as y

  21. anonymous
    • one year ago
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    okay you meant replace x with y i got ya now.

  22. Ac3
    • one year ago
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    now you solve for y

  23. Ac3
    • one year ago
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    that's it.

  24. Ac3
    • one year ago
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    and when your done just to be proper since you started with f(x) put f(x) in back for y.

  25. anonymous
    • one year ago
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    so it'll be f(x)=1/5(5-x) ?

  26. Ac3
    • one year ago
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    |dw:1439166555309:dw|

  27. Ac3
    • one year ago
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    |dw:1439166694002:dw|

  28. anonymous
    • one year ago
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    so i was right?

  29. Ac3
    • one year ago
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    yes make sure you call f(x) f inverse of x

  30. Ac3
    • one year ago
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    That's it man.

  31. anonymous
    • one year ago
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    awesome!!!!!!!!!!!!!! thanks!!

  32. Ac3
    • one year ago
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    no problem.

  33. Ac3
    • one year ago
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    become my fan in case you need my help in the future.

  34. Ac3
    • one year ago
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    later.

  35. anonymous
    • one year ago
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    great!

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