anonymous
  • anonymous
Let f(x) = -4x + 7 and g(x) = 10x - 6, find f(g(x)). -40x + 24 -40x + 31 -40x + 64 -40x + 70
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Do you know how to start it?
anonymous
  • anonymous
no
anonymous
  • anonymous
Alright g is on the inside, so you are going to put the function g, into the x of the function f

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More answers

anonymous
  • anonymous
ok
anonymous
  • anonymous
Does that make sense? Are you able to do it now?
anonymous
  • anonymous
i dont even know what im looking at
anonymous
  • anonymous
haha alright here, -4(10x-6) + 7 I put g(x) into f(x) now just solve
anonymous
  • anonymous
simplify not solve
anonymous
  • anonymous
how do i do that?
Jasmineflvs
  • Jasmineflvs
first analyze it the question is find f(g(x)) you already know that f(x) = -4x + 7 and g(x) = 10x - 6...but in the question there is no f(x) but there is just an f so what would you do to find f
anonymous
  • anonymous
simplify? just distribute the parenthesis
Jasmineflvs
  • Jasmineflvs
no not yet
anonymous
  • anonymous
yes you would, from what I said he would
anonymous
  • anonymous
I already went through putting the function g into the function f
Jasmineflvs
  • Jasmineflvs
you would take away the x from the equation so it would be f=-4+7
Jasmineflvs
  • Jasmineflvs
i think
anonymous
  • anonymous
;__; what do i do
anonymous
  • anonymous
no you would not
anonymous
  • anonymous
listen to me, you have f(x) = -4(10x-6) + 7
Jasmineflvs
  • Jasmineflvs
i'm sorry i'll try to find a link that can help you..kk..first what kind of problem is this
anonymous
  • anonymous
algebra
anonymous
  • anonymous
then you just simplify f(x) = -4(10x-6) + 7 -40x + 24 + 7
Jasmineflvs
  • Jasmineflvs
i mean like equation....ect.
anonymous
  • anonymous
f(x) = -40x + 31, and that is your answer
anonymous
  • anonymous
so b
Jasmineflvs
  • Jasmineflvs
lets have two opinions first kk
anonymous
  • anonymous
No it is b I promise you
anonymous
  • anonymous
im going to cry
anonymous
  • anonymous
jasmineflvs I came up with one of the answers, you told him to eliminate the x which you DO NOT DO. I promise you it is b, I can show you again if you like
Jasmineflvs
  • Jasmineflvs
no lets get two opinions and dont cry
anonymous
  • anonymous
Why does he need two opinions? alright thebroski I want you to work it out yourself, start by putting g(x) into the x in f(x)
anonymous
  • anonymous
f(x) = -4x + 7 and g(x) = 10x - 6, so g(x) goes into f(x = -4(g(x) goes here) + 7
Jasmineflvs
  • Jasmineflvs
just a sec kkk i'll get it and if you were rigght ill give you a medal..kk
anonymous
  • anonymous
thats racists
Jasmineflvs
  • Jasmineflvs
???
Jasmineflvs
  • Jasmineflvs
how?? may i ask
anonymous
  • anonymous
.just a sec ((kkk))) i'll get it and if you were rigght ill give you a medal..kk
Jasmineflvs
  • Jasmineflvs
??? still dont understand why it is racist
anonymous
  • anonymous
Let f(x) = 2x + 2. Solve f-1(x) when x = 4. 1 3 4 10
Jasmineflvs
  • Jasmineflvs
let me guess you got the answer
anonymous
  • anonymous
no im just terrible at math
anonymous
  • anonymous
f^-1(x) is an inverse equation
Jasmineflvs
  • Jasmineflvs
that's okay
anonymous
  • anonymous
you need to switch the spots of x and y in the equation given and the solve for y, make sense
anonymous
  • anonymous
?
Jasmineflvs
  • Jasmineflvs
sorry i can't help you on functions i am behind in Algebra...I'm in 10th grade and I'm still in Algebra 1...sorwie
anonymous
  • anonymous
im in 10th to but math is not my subject i dont understand any of it except 2+2 thats all i understand
Jasmineflvs
  • Jasmineflvs
lolz
Jasmineflvs
  • Jasmineflvs
i'm getting a friend to help you on this one
Jasmineflvs
  • Jasmineflvs
@sasogeek @Hero @jim_thompson5910 @cwrw238 plz help him
UsArmy3947
  • UsArmy3947
ok got the answer
UsArmy3947
  • UsArmy3947
here f(10x-6)=31-40x
anonymous
  • anonymous
wut
UsArmy3947
  • UsArmy3947
thats the answer
anonymous
  • anonymous
oh right
UsArmy3947
  • UsArmy3947
sorry sir if u want help be more nicer
anonymous
  • anonymous
what do you mean
anonymous
  • anonymous
.Let f(x) = 2x + 2. Solve f-1(x) when x = 4. 1 3 4 10
sasogeek
  • sasogeek
thebroski, if you're not going to put some effort into understanding the concept of the answer, no one can really help you. stop posting questions with multiple choice answers if you're not ready to learn
UsArmy3947
  • UsArmy3947
dont say any thing without thinking this is a Moderator
anonymous
  • anonymous
i am trying to put effort into this its just that i have a problem with understanding things im just kinda slow.
anonymous
  • anonymous
btw i really dont care if ur the moderator it doesnt give you the right to ban someone because they need help with questions
sasogeek
  • sasogeek
i'm not going to ban u for asking for help, in fact i'll help you if i can. it just doesnt seem like u really want the help though. sounds like u just want the answer cos it's quite a long thread and u still don't get it... reposting the question with the possible answers doesn't get u so far on this site. be patient, and try at least, to understand :)
anonymous
  • anonymous
ok
UsArmy3947
  • UsArmy3947
ya i could also help u
anonymous
  • anonymous
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UsArmy3947
  • UsArmy3947
what?
anonymous
  • anonymous
it means thank you
UsArmy3947
  • UsArmy3947
no problem ill be leaving now bye

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