NathalyN
  • NathalyN
HELP ME PLEASE IT URGENT I NEEDT GETTING HELP HELP I NEED HELP A LOT OF HELP PLEASE HELP PLEASE IM TIRES OF NO
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
OK I AM HERE
NathalyN
  • NathalyN
anonymous
  • anonymous
I can do this. Hang on let me work it out on paper.

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NathalyN
  • NathalyN
OKAY THANKS FOR HELP ME @elite.weeaboo
anonymous
  • anonymous
Ehh. Having trouble. @Michele_Laino I could use some assistance! Haha (:
NathalyN
  • NathalyN
hElp mE I T RGeNt
welshfella
  • welshfella
try first one f(x) = 4x + 7 g(x) = x - 3 replace the x in 4x - 7 by x - 3 and see if it rearranges to 4x + 11
welshfella
  • welshfella
|dw:1440094772703:dw|
NathalyN
  • NathalyN
its not the 1 one!
mathstudent55
  • mathstudent55
For each choice, substitute into x of f(x) with g(x) and see if you end up with f(g(x)) in the problem statement.
08surya
  • 08surya
let g(x)=a and solve you will get
welshfella
  • welshfella
4(x - 3) + 7 = 4x - 12 + 7 = 4x - 5 So itys not this one
welshfella
  • welshfella
try each one in rurn
NathalyN
  • NathalyN
i know @welshfella
imqwerty
  • imqwerty
D
welshfella
  • welshfella
I'm only trying to help...
imqwerty
  • imqwerty
enjoy :)
mathstudent55
  • mathstudent55
Let's do choice A as an example. g(x) = x - 3 Now we replace x of f(x) with x - 3 f(x) = 4x + 7 f(g(x)) = 4(x - 3) + 7 f(g(x)) = 4x - 12 + 7 f(g(x)) = 4x - 5 Since our f(g(x)) is not equal to the f(g(x)) we were given, choice A is not the answer. Now do the same with the other choices until you find the answer.
welshfella
  • welshfella
@imqwerty - plz dont just give the answer
triciaal
  • triciaal
when you use g(x) as your x in f(x) the answer is 4x + 11
triciaal
  • triciaal
4* g(x) - 11 = f(x)

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