anonymous
  • anonymous
what is the x intercept of y=1+(1/x)+(1/x^2)
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
Is the x intercept when y = 0?
anonymous
  • anonymous
Yess!
anonymous
  • anonymous
Then shouldn't you just try to solve \[0=1 + \frac{1}{x}+\frac{1}{x^2}\]?

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anonymous
  • anonymous
I did & i dont think theres a defined answer so i was just checking if i did something wrong
anonymous
  • anonymous
Ah, did you check the discriminant to see if it was positive/zero/negative?
cwrw238
  • cwrw238
multiply each term by x^2
cwrw238
  • cwrw238
giving x^2 + x + 1 = 0 and check discriminant as freewill said
cwrw238
  • cwrw238
yup
anonymous
  • anonymous
alright thanks.
cwrw238
  • cwrw238
the roots are non-real (complex) numbers
cwrw238
  • cwrw238
yw

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