tono4 tono4
  • 28-03-2017
  • Mathematics
contestada

For the function y=2x^2-7 , which of these values of x corresponds to y=1

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1999eva
1999eva 1999eva
  • 28-03-2017
1=2x^2-7
2x^2=8
x^2=4
so x=2 or x=-2
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