anonymous
  • anonymous
find domain when f(x)=-9/(x^2+4x)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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jim_thompson5910
  • jim_thompson5910
set the denominator equal to 0 and solve for x x^2+4x = 0 x = ?? or x = ??
DanJS
  • DanJS
what are you not seeing clearly
DanJS
  • DanJS
If the denominator of a fraction moves ever closer to zero as you move towards some value of x, then the result would be values of f(x) that will become ever larger as x gets closer to that value

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DanJS
  • DanJS
for instance here , if x^2 + 4x can be zero at any x value, the function will go off to huge numbers as you get closer to that x value, and that x value is not defined or in the domain of the function

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