ExoticInspirit
  • ExoticInspirit
Is my work correct? Find x when f(x)=1. (This means find the input that gives an output of 1.) f(x)=2/2+2=2/4=2/2=1
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Nnesha
  • Nnesha
y=input x=output
Nnesha
  • Nnesha
what is f(x) function ?
ExoticInspirit
  • ExoticInspirit
f(x)= y

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More answers

ExoticInspirit
  • ExoticInspirit
the function is 2/x+2
Nnesha
  • Nnesha
is it \[\frac{ 2 }{ x }+2 ~~\rm or \frac{ 2 }{ x+2 }\]
ExoticInspirit
  • ExoticInspirit
the one after or (the second one)
Nnesha
  • Nnesha
okay cool so \[\huge\rm f(x) = \frac{ 2 }{ x+2 }\] f(x) =1 so substitute f(x) for 1 \[\rm 1=\frac{ 2 }{ x+2 }\] solve for x
ExoticInspirit
  • ExoticInspirit
!!OH Duh im finding x so i did it wrong right?
ExoticInspirit
  • ExoticInspirit
i said that x was 2 according to my calculations
Nnesha
  • Nnesha
yes right i don't know why u replaced `x` with `2`
ExoticInspirit
  • ExoticInspirit
x is 1
Nnesha
  • Nnesha
okay substitute x for 1 to check ur work \[\huge\rm 1=\frac{ 2 }{ \color{ReD}{1}+2 }\] both sides are equal ?
ExoticInspirit
  • ExoticInspirit
NO
ExoticInspirit
  • ExoticInspirit
OHHHH OK SO THEY HAVE TO EQUAL THE SAME!!! THANK YOU SO MUCH IM NEW TO THIS
ExoticInspirit
  • ExoticInspirit
:di got it let me try another #
Nnesha
  • Nnesha
so no x isn''t one yes right you should check ur answer if you get equal sides then yes one is right if both sides aren't equal then no
ExoticInspirit
  • ExoticInspirit
ok but there is one question where it says x=4 but when i plugged in 4 it wasnt equal
ExoticInspirit
  • ExoticInspirit
|dw:1441162289198:dw|
ExoticInspirit
  • ExoticInspirit
f(8) is not equal to 3 or 2/6
Nnesha
  • Nnesha
|dw:1441162547995:dw| bot sides are equal ?
Nnesha
  • Nnesha
both*
Nnesha
  • Nnesha
2/6 isn't 3..
ExoticInspirit
  • ExoticInspirit
im so lost right now , i got 3 because i simplified and 2x3=6
Nnesha
  • Nnesha
why did you multiply 2 times 3 ?
ExoticInspirit
  • ExoticInspirit
it said find f(8) this means find the output of the function when x=4
Nnesha
  • Nnesha
it's \[\frac{ 2 }{ 4+2 } =\frac{ 2 }{ 6}\]
ExoticInspirit
  • ExoticInspirit
oh i didnt but that was just the work for the division problem
ExoticInspirit
  • ExoticInspirit
yeah thats what i got and it isnt equal so im confused right now
Nnesha
  • Nnesha
i'm confused take a screenshot plz
ExoticInspirit
  • ExoticInspirit
i cant sorry but let me draw it
Nnesha
  • Nnesha
okay i've 5 mints hurry up!
ExoticInspirit
  • ExoticInspirit
oh i already did its find f(8) then i wrote f(8)= 2/4+2 = 2/6
ExoticInspirit
  • ExoticInspirit
brb
Nnesha
  • Nnesha
post the original question plz
Nnesha
  • Nnesha
gtg bye good luck
Nnesha
  • Nnesha
sorry
ExoticInspirit
  • ExoticInspirit
hi shadow
ExoticInspirit
  • ExoticInspirit
:(
ExoticInspirit
  • ExoticInspirit
@nincompoop
Nnesha
  • Nnesha
aww didn't get help tag me when you're online okay ?

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