anonymous
  • anonymous
Which of the following statements have the same result? Explain each step in solving each one. I. f(2) when f(x) = 3x + 2 2. f^-1(3) when f(x) = 2 x minus 7, all over 3 3. 2y + 14 = 4y - 2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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horsegirl27
  • horsegirl27
Okay, so let's start with 1. Replace 2 for x in f(x)=3x+2
anonymous
  • anonymous
that would be 8
anonymous
  • anonymous
and the second one you would do the inverse by making x y and solving for x

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horsegirl27
  • horsegirl27
yup
anonymous
  • anonymous
|dw:1433624655272:dw|
anonymous
  • anonymous
x=3x+7/2
anonymous
  • anonymous
then plug in 3
horsegirl27
  • horsegirl27
yep
anonymous
  • anonymous
which would be 8 so even though I have the problem done, how do i do the 3rd one
horsegirl27
  • horsegirl27
Okay, and the third one you have to get y on one side. Do you know how to do that?
anonymous
  • anonymous
yeah
horsegirl27
  • horsegirl27
okay, so what do you get once you get y on one side?
anonymous
  • anonymous
|dw:1433624850798:dw|
anonymous
  • anonymous
so y =8?
anonymous
  • anonymous
oh so all 3?
horsegirl27
  • horsegirl27
I guess so, as that's what your work shows. Even if you get it wrong, all your work is supporting your answer so you'll still get credit. But that appears to me to be the correct answer.
anonymous
  • anonymous
thanks!
horsegirl27
  • horsegirl27
You're welcome!!

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