Agl202
  • Agl202
Quick help... Consider the function f(x) = x2 − 2x + 6. Find the value of f(x) when x = 3 and select the correct answer below. 1 3 6 9
Mathematics
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Plug in x
anonymous
  • anonymous
All you need to do is plug 3 in wherever you see an x and then solve. Does that clear it up?
Jhannybean
  • Jhannybean
\(f(3) = (3)^2-2(3)+6\)

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More answers

Agl202
  • Agl202
it's 9, right?
SolomonZelman
  • SolomonZelman
For example, if I needed to find the value of f(x) when x=4, THEN this is what I would do: \(\large\color{black}{ \displaystyle f(x)=x^2-2x+6 }\) \(\large\color{black}{ \displaystyle f(\color{red}{4})=\color{red}{(4)}^2-2\color{red}{(4})+6 }\) \(\large\color{black}{ \displaystyle f(\color{red}{4})=16-8+6 }\) \(\large\color{black}{ \displaystyle f(\color{red}{4})=14 }\) ----------------------------------------------- Yes, 9 is right for x=3
anonymous
  • anonymous
Yep, it is 9 =)
Agl202
  • Agl202
Duh! Lol, Thx guys! :D
SolomonZelman
  • SolomonZelman
Anytime....

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