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itsmichelle29

  • one year ago

Which of the following statements have the same result? Explain each step in solving each one. I.f(2) when f(x) = 3x + 2 II.f-1(3) when f(x) = 2 x minus 7, all over 3 III.2y + 14 = 4y - 2

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  1. freckles
    • one year ago
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    did you replace x with 2 for I?

  2. freckles
    • one year ago
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    in II how you have to do is replace f(x) with 3 and solve for x. III. you solve for y.

  3. itsmichelle29
    • one year ago
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    so I is 8

  4. itsmichelle29
    • one year ago
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    @freckles

  5. itsmichelle29
    • one year ago
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    and II. i get -1/3 is that correct

  6. freckles
    • one year ago
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    let see 3(2)+2 is 6+2 which is 8 so yes for I

  7. freckles
    • one year ago
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    \[3=\frac{2x-7}{3}\] I think this is what you have above?

  8. freckles
    • one year ago
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    and I asked you to replace f(x) with 3 since we want to find f^(-1)(3)

  9. freckles
    • one year ago
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    hmm solving that shouldn't give -1/3

  10. itsmichelle29
    • one year ago
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    idk what the answer is

  11. itsmichelle29
    • one year ago
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    @freckles

  12. freckles
    • one year ago
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    did you try solving the equation I have above?

  13. freckles
    • one year ago
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    what is 3(3)?

  14. freckles
    • one year ago
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    \[3=\frac{2x-7}{3} \\ 3(3)=2x-7\]

  15. freckles
    • one year ago
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    and I will give you another hint add 7 on both sides

  16. itsmichelle29
    • one year ago
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    so its 8

  17. itsmichelle29
    • one year ago
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    so they all have the same result

  18. freckles
    • one year ago
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    it seems so :)

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