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anonymous

  • one year ago

i will fan and medal

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  1. anonymous
    • one year ago
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    Which of the following expressions is the inverse of the function y equals quantity x minus 2 divided by 3? y = 3x + 2 y = 2x + 3 y equals quantity x minus 3 divided by 2 y equals quantity x plus 2 divided by 3

  2. anonymous
    • one year ago
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    What does "quantity x minus 2 divided by 3" look like?

  3. anonymous
    • one year ago
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    y = x - 3 / 2

  4. anonymous
    • one year ago
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    So would it be \[y=x-\frac{3}{2}\]

  5. anonymous
    • one year ago
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    nah

  6. anonymous
    • one year ago
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    Nah? Can you draw it out then?

  7. anonymous
    • one year ago
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    |dw:1433789950204:dw|

  8. anonymous
    • one year ago
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    sorry for the bad drawing

  9. anonymous
    • one year ago
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    Which of the following expressions is the inverse of the function y equals quantity x minus 2 divided by 3? Which of the following expressions is the inverse of the function \(y = \dfrac{x - 2}{3}\)? Does that look right to you, as your question?

  10. anonymous
    • one year ago
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    why you don't study well?

  11. anonymous
    • one year ago
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    yup

  12. anonymous
    • one year ago
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    i came here for help @k142

  13. anonymous
    • one year ago
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    it is not help you are just looking for answers.

  14. anonymous
    • one year ago
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    @k142 ask @Algorithmic if i only came here for answers

  15. anonymous
    • one year ago
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    It is okay. I just wanted to tell you that way will never help you and you'll fail your exams.

  16. anonymous
    • one year ago
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    thanks for your advice but i don't need it

  17. anonymous
    • one year ago
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    can you help @Algorithmic because @k142 is just giving me advice

  18. anonymous
    • one year ago
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    smh

  19. anonymous
    • one year ago
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    \[y^{-1} = \dfrac{x - 2}{3} \implies x = \dfrac{y - 2}{3} \implies 3 \times x = \dfrac{y - 2}{3} \times \dfrac{3}{1} \] \[3x = y - 2\implies 3x + 2 = y\] Did you understand all that?

  20. anonymous
    • one year ago
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    Basically switch out \(y\) to \(x\), then try for isolate \(y\).

  21. anonymous
    • one year ago
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    why did u put 3*x

  22. anonymous
    • one year ago
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    and the 3 over 1

  23. anonymous
    • one year ago
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    This \(3 \times x = \dfrac{y - 2}{3} \times \dfrac{3}{1}\) is the same as \(\dfrac{3}{1} \times x = \dfrac{y - 2}{3} \times \dfrac{3}{1}\). The \(\dfrac{3}{1}\) is used to cancel out the three under the \(y - 2\) numerator. \[\dfrac{3}{1} \times x = \dfrac{y - 2}{\cancel{3}} \times \cancel{\dfrac{3}{1}}\]

  24. anonymous
    • one year ago
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    i understand now <3

  25. anonymous
    • one year ago
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    \(\dfrac{3}{1} \times x\) simplies to \(3x\).

  26. anonymous
    • one year ago
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    All right, great.

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