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Calcmathlete
Group Title
If f(x + 3) = \(x^2 + 2x + 4\), find f(x).
Do I just plug in x + 3 for x?
 2 years ago
 2 years ago
Calcmathlete Group Title
If f(x + 3) = \(x^2 + 2x + 4\), find f(x). Do I just plug in x + 3 for x?
 2 years ago
 2 years ago

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waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Replace x + 3 by x.. So put x  3..
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.0
Wait, why would that work? I just want to understand the dynamics of why it works.
 2 years ago

sai1234 Group TitleBest ResponseYou've already chosen the best response.0
put x  3 inplace of x because f((x3)+3)=f(x3+3)=f(x)
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
If you replace there x by x 3: Then: \[f(\color{green}{x} + 3) = f(\color{blue}{x  3} + 3) = f(x)\]
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.0
Oh I get it now... f(x) = x^2  4x + 7?
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Well Done..
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.0
Thanks :)
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Hey right this time you became 93.. Congratulations..
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.0
Thank you again :)
 2 years ago
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