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Mathematics 25 Online
OpenStudy (anonymous):

Need confirmation. Question in comments, I think the answer is 4.

OpenStudy (anonymous):

OpenStudy (anonymous):

@DannyO19

OpenStudy (dannyo19):

Now you have to substitute g(x) in for x in f(x) right?

OpenStudy (anonymous):

Yea like before o.o

OpenStudy (dannyo19):

So you get the Sqrt of (6x-18)

OpenStudy (dannyo19):

Right?

OpenStudy (anonymous):

Idk o.o

jhonyy9 (jhonyy9):

yes

OpenStudy (dannyo19):

cuz that's f of g(x)

OpenStudy (anonymous):

so how do we find x now? :/

jhonyy9 (jhonyy9):

what you know about radical ? when is undefined in plane of real numbers ?

jhonyy9 (jhonyy9):

allwasy need being greater than zero - yes ?

OpenStudy (anonymous):

What?

jhonyy9 (jhonyy9):

so than 6x-18>0 6x>18 x>3 x=4 how you have wrote there above

OpenStudy (dannyo19):

Zero times zero makes for the first square root among all real numbers that would present on a typical graph.

RhondaSommer (rhondasommer):

remember how we tried to get zero?

OpenStudy (anonymous):

Wait so is the answer 4 then? ><

RhondaSommer (rhondasommer):

no.

OpenStudy (dannyo19):

18-18 is zero so how do we get 18 from x?

RhondaSommer (rhondasommer):

why dont you plug it into the calculator ><

OpenStudy (dannyo19):

6x-18 = zero is your minimum value that will be in the function

OpenStudy (dannyo19):

So can you solve for x?

OpenStudy (anonymous):

18/6?

jhonyy9 (jhonyy9):

@WhatEven you are right with 4 sure

OpenStudy (anonymous):

3?

OpenStudy (dannyo19):

Yes, that's it.

RhondaSommer (rhondasommer):

yes @WhatEven

jhonyy9 (jhonyy9):

3 not is right because you get 18-18 =0

RhondaSommer (rhondasommer):

honesty; most of these you could plug into the calculator and find the answer that way.

RhondaSommer (rhondasommer):

exactly @jhonyy9

jhonyy9 (jhonyy9):

and you know that a squaroot need being allways greater than zero

jhonyy9 (jhonyy9):

thank you @RhondaSommer - you know it sure right

RhondaSommer (rhondasommer):

look bruh. i graphed it.

OpenStudy (anonymous):

No 3 is right my assignment said correct. and I tried plugging it in I wasn't sure how exactly though.

RhondaSommer (rhondasommer):

you are supposed to equal it to zero

RhondaSommer (rhondasommer):

3 is correct is what i was saying

RhondaSommer (rhondasommer):

why dont you just use the graphing calculator?

OpenStudy (anonymous):

@RhondaSommer since you have a medal and danny helped I'm going to medal him if that's okay :$

RhondaSommer (rhondasommer):

no prob :P i was gone for too long anyway

OpenStudy (anonymous):

Also brb my dog needs out

RhondaSommer (rhondasommer):

brb need to clean

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