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SephI
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Can someone PLEASE explain how to solve this? The fraction at the end completely throws me off!!
Pic related: http://prntscr.com/12xgei
 one year ago
 one year ago
SephI Group Title
Can someone PLEASE explain how to solve this? The fraction at the end completely throws me off!! Pic related: http://prntscr.com/12xgei
 one year ago
 one year ago

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terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
Okay... So, essentially \[\huge \frac{f}g(x) = \frac{f(x)}{g(x)}\] is the key to understanding this...
 one year ago

SephI Group TitleBest ResponseYou've already chosen the best response.1
I deducted it and f(x) = 3 and g(x) = 7 But, my answer isn't 7... My answers are: 3 3 1 1 I tried dividing 3 by 7 and 7 by 3, but that didn't work.
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
f(x) = 3? I take it you meant f(2) indeed, f(2) = 3 I suggest you retry g(2)
 one year ago

SephI Group TitleBest ResponseYou've already chosen the best response.1
I thought: \[\frac{ f }{ g }(2) = \frac{ f(2) }{ g }\] Then I'd find f(2) Then I'd plug in 2 to g(x) and get 7.
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
Ahh. No. \[\huge \frac{f}g(x) = \frac{f(x)}{g(x)}\\\huge \frac{f}g(2)=\frac{f(2)}{g(2)}\]
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
It does bug me when they use shorthand notation resulting into unclear stuff... but yeah, that's Maths for you :P
 one year ago

SephI Group TitleBest ResponseYou've already chosen the best response.1
Here is what I did: f(x) = 3x  3 f(x) = 3(2)  3 f(x) = 6  3 f(x) = 3 Plug it into g g(x) = 2(3) + 1 g(x) = 7 But the answer isn't seven. Am I doing it wrong?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
because you're not supposed to get g(f(2)) Just g(2)
 one year ago

SephI Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{ 3(2)  3 }{ 2(2) + 1 }\] Is that it?
 one year ago

SephI Group TitleBest ResponseYou've already chosen the best response.1
\[\frac{ 3 }{ 3 } = 1\]
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
There you go.
 one year ago

SephI Group TitleBest ResponseYou've already chosen the best response.1
Okay, and can you explain the g(f[4]) thingy?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
That's when you first get the result of f(4) and then plug it into g(x)
 one year ago

SephI Group TitleBest ResponseYou've already chosen the best response.1
And if you had f(g[4]) You'd first get g and plug it into f?
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
You'd first get g(4) and then plug it into f(x) , yes :)
 one year ago

SephI Group TitleBest ResponseYou've already chosen the best response.1
I see. It's all about order. But sometimes it's so unclear ;;
 one year ago

terenzreignz Group TitleBest ResponseYou've already chosen the best response.2
Hopefully clearer now, if only a little bit :)
 one year ago
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