18jonea
  • 18jonea
Calculate the zeros of the function y=x^2−9x+14 . (0,7) and (0,2) (7,0) and (2,0) (0,14) None of these @calcmathlete
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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18jonea
  • 18jonea
I think true @Calcmathlete
anonymous
  • anonymous
Sorry, was helping someone else. To calculate the zeroes, we set y = 0 and factor. \[0 = x^2 - 9x + 14\]So, we need to find two numbers that multiply to 14 but add up to -9. By inspection, -7 and -2 fit the bill. \[0 = x^2 - 9x + 14 \implies 0 = (x - 7)(x - 2)\]Can you get the zeroes from there?
18jonea
  • 18jonea
yes

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anonymous
  • anonymous
To make sure, which of those do you think the answer is?
18jonea
  • 18jonea
B
anonymous
  • anonymous
Yup! Good job!

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