anonymous
  • anonymous
Without any trolling . Can anyone help me figure this out ?
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
skullpatrol
  • skullpatrol
Any ideas?
anonymous
  • anonymous
Don't I have to replace f(x) with y or something ..? :c

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More answers

skullpatrol
  • skullpatrol
You have to understand what f(x) means, which is?
anonymous
  • anonymous
Function notation ?
skullpatrol
  • skullpatrol
Yes...but what does it say about x?
anonymous
  • anonymous
Replace it with -1
skullpatrol
  • skullpatrol
Yes, in your question do it first with the function g(-1)
anonymous
  • anonymous
Wait so what am I doing ..? I'm sorry I don't understand any of this ..
skullpatrol
  • skullpatrol
Start first within the innermost parentheses of $$\huge f(g(x))$$ and work towards the outermost parentheses ...
anonymous
  • anonymous
I know that much I just don't know how to solve it or work it out
skullpatrol
  • skullpatrol
|dw:1378321409759:dw|
anonymous
  • anonymous
I thought so . But I wasn't sure if -1 went in g(x) ..
skullpatrol
  • skullpatrol
Now what?
anonymous
  • anonymous
Do we work out f(x) ..?
skullpatrol
  • skullpatrol
Yes.
anonymous
  • anonymous
Replace "x" with -1 ?
skullpatrol
  • skullpatrol
We use the result from g(-1) in f. That is what f(g(x)) means...
anonymous
  • anonymous
Okay so 2 then .
anonymous
  • anonymous
That would be 5 then
skullpatrol
  • skullpatrol
f(x)=5x-10
anonymous
  • anonymous
Yes , isn't the answer 5 ?
skullpatrol
  • skullpatrol
How?
anonymous
  • anonymous
|dw:1378321832200:dw|
skullpatrol
  • skullpatrol
Excuse me? Are you trying to troll me with $$\huge5(2)=25$$
anonymous
  • anonymous
No ?? I thought that's that you had to do .. Sorry ...
anonymous
  • anonymous
what *
skullpatrol
  • skullpatrol
|dw:1378322275977:dw|
anonymous
  • anonymous
I already warned you that I didn't know how to do any of this .
anonymous
  • anonymous
Ok I know .
skullpatrol
  • skullpatrol
so what is 5*2=?
anonymous
  • anonymous
25 I know . I understand that .
anonymous
  • anonymous
I mean 10 sorry
skullpatrol
  • skullpatrol
I just kidding about the trolling :D so what is your answer?
anonymous
  • anonymous
Ok . It's 10
skullpatrol
  • skullpatrol
correct your work please
anonymous
  • anonymous
What ?
skullpatrol
  • skullpatrol
|dw:1378322533506:dw|
anonymous
  • anonymous
It's not worth correcting though , I already know the answer . So is 10 the answer to the entire question ?
anonymous
  • anonymous
Or just for f(x)
skullpatrol
  • skullpatrol
|dw:1378322646531:dw|
skullpatrol
  • skullpatrol
f(g(x)) = 0 when x = -1
anonymous
  • anonymous
Okay
anonymous
  • anonymous
Okay thank you
skullpatrol
  • skullpatrol
|dw:1378322937548:dw|
anonymous
  • anonymous
What about this one ?
skullpatrol
  • skullpatrol
What about it?
anonymous
  • anonymous
Nevermind I'm just going to guess . I don't have enough time to work out all of these problems . Thanks for your help though .
skullpatrol
  • skullpatrol
I can help if you want to learn :-)
skullpatrol
  • skullpatrol
It is the same as the last one we did ...
skullpatrol
  • skullpatrol
Just let x=15
anonymous
  • anonymous
I do want to learn but I'm being timed . I'm taking a quiz . I don't have time to work out anything else ....
skullpatrol
  • skullpatrol
start from the innermost function
anonymous
  • anonymous
I tried working it out , is it 16 ? Yes or no :o
anonymous
  • anonymous
Ugh .. That was my second choice -.-
skullpatrol
  • skullpatrol
Go.od luck, come back and learn when you have time
anonymous
  • anonymous
Okay

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