itsmichelle29
  • itsmichelle29
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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freckles
  • freckles
did you replace x with 2 for I?
freckles
  • freckles
in II how you have to do is replace f(x) with 3 and solve for x. III. you solve for y.
itsmichelle29
  • itsmichelle29
so I is 8

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itsmichelle29
  • itsmichelle29
@freckles
itsmichelle29
  • itsmichelle29
and II. i get -1/3 is that correct
freckles
  • freckles
let see 3(2)+2 is 6+2 which is 8 so yes for I
freckles
  • freckles
\[3=\frac{2x-7}{3}\] I think this is what you have above?
freckles
  • freckles
and I asked you to replace f(x) with 3 since we want to find f^(-1)(3)
freckles
  • freckles
hmm solving that shouldn't give -1/3
itsmichelle29
  • itsmichelle29
idk what the answer is
itsmichelle29
  • itsmichelle29
@freckles
freckles
  • freckles
did you try solving the equation I have above?
freckles
  • freckles
what is 3(3)?
freckles
  • freckles
\[3=\frac{2x-7}{3} \\ 3(3)=2x-7\]
freckles
  • freckles
and I will give you another hint add 7 on both sides
itsmichelle29
  • itsmichelle29
so its 8
itsmichelle29
  • itsmichelle29
so they all have the same result
freckles
  • freckles
it seems so :)

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