Without any trolling . Can anyone help me figure this out ?

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- anonymous

Without any trolling . Can anyone help me figure this out ?

- chestercat

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- anonymous

##### 1 Attachment

- skullpatrol

Any ideas?

- anonymous

Don't I have to replace f(x) with y or something ..? :c

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## More answers

- skullpatrol

You have to understand what f(x) means, which is?

- anonymous

Function notation ?

- skullpatrol

Yes...but what does it say about x?

- anonymous

Replace it with -1

- skullpatrol

Yes, in your question do it first with the function g(-1)

- anonymous

Wait so what am I doing ..? I'm sorry I don't understand any of this ..

- skullpatrol

Start first within the innermost parentheses of $$\huge f(g(x))$$ and work towards the outermost parentheses ...

- anonymous

I know that much I just don't know how to solve it or work it out

- skullpatrol

|dw:1378321409759:dw|

- anonymous

I thought so . But I wasn't sure if -1 went in g(x) ..

- skullpatrol

Now what?

- anonymous

Do we work out f(x) ..?

- skullpatrol

Yes.

- anonymous

Replace "x" with -1 ?

- skullpatrol

We use the result from g(-1) in f. That is what f(g(x)) means...

- anonymous

Okay so 2 then .

- anonymous

That would be 5 then

- skullpatrol

f(x)=5x-10

- anonymous

Yes , isn't the answer 5 ?

- skullpatrol

How?

- anonymous

|dw:1378321832200:dw|

- skullpatrol

Excuse me?
Are you trying to troll me with $$\huge5(2)=25$$

- anonymous

No ?? I thought that's that you had to do .. Sorry ...

- anonymous

what *

- skullpatrol

|dw:1378322275977:dw|

- anonymous

I already warned you that I didn't know how to do any of this .

- anonymous

Ok I know .

- skullpatrol

so what is 5*2=?

- anonymous

25 I know . I understand that .

- anonymous

I mean 10 sorry

- skullpatrol

I just kidding about the trolling :D
so what is your answer?

- anonymous

Ok . It's 10

- skullpatrol

correct your work please

- anonymous

What ?

- skullpatrol

|dw:1378322533506:dw|

- anonymous

It's not worth correcting though , I already know the answer . So is 10 the answer to the entire question ?

- anonymous

Or just for f(x)

- skullpatrol

|dw:1378322646531:dw|

- skullpatrol

f(g(x)) = 0 when x = -1

- anonymous

Okay

- anonymous

Okay thank you

- skullpatrol

|dw:1378322937548:dw|

- anonymous

What about this one ?

##### 1 Attachment

- skullpatrol

What about it?

- 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

I can help if you want to learn :-)

- skullpatrol

It is the same as the last one we did ...

- skullpatrol

Just let x=15

- 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

start from the innermost function

- anonymous

I tried working it out , is it 16 ? Yes or no :o

- anonymous

Ugh .. That was my second choice -.-

- skullpatrol

Go.od luck, come back and learn when you have time

- anonymous

Okay

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