anonymous
  • anonymous
Can anyone help?! suppose f(x)=4x-2 and g(x)=-2x+1 find the value of f(5)/g(-3)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
1.Plug in x=5 to f(x) to get number #1 2. Plug in x=-3 into g(x) to get number #2 Then divide number #1/number #2
anonymous
  • anonymous
Is it 2?
anonymous
  • anonymous
How did you get that?

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anonymous
  • anonymous
I plugged in 5 and -3 into the equation then divided both, why is it wrong?
anonymous
  • anonymous
Plug 5 in f(x)=4x-2 what did you get?
anonymous
  • anonymous
18
anonymous
  • anonymous
Wait I think I messed up, is the answer 2 4/7?
jdoe0001
  • jdoe0001
hmm
jdoe0001
  • jdoe0001
\(\large \begin{array}{llll} f(x)=4x-2 \\ \quad \\ g(x)=-2x+1 \end{array}\qquad \begin{array}{llll} \cfrac{f({\color{brown}{ 5}})=4({\color{brown}{ 5}})-2}{g({\color{brown}{ -3}})=-2({\color{brown}{ -3}})+1} \end{array}\implies \cfrac{?}{?}\)
jdoe0001
  • jdoe0001
4*5-2 = 20-2 = 18 -2*-3+1 = +6+1 = 7
anonymous
  • anonymous
18/7= 2.57?
jdoe0001
  • jdoe0001
yeap
anonymous
  • anonymous
Yes 2(4/7) works
anonymous
  • anonymous
Ok, thank you both!

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