anonymous
  • anonymous
dtermine the domain and range of the following relation. y=square x-7
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Range is greater then or equal to -7 Domain is all real numbers
anonymous
  • anonymous
do you mean y=sqrt(x-7) (square root)
anonymous
  • anonymous
Oh I didn't think of that Kizzy, can you rewrite the question using the equation mode

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anonymous
  • anonymous
y=\[y=\sqrt{x-7}\]sqrt{x-7}\]
anonymous
  • anonymous
then the range is greater than or equal to 0 and the domain is x greater than or equal to 7
anonymous
  • anonymous
square root is positive, and the inside of the square root need to be positive if we're dealing with real numbers
anonymous
  • anonymous
Yes that is right Originally I thought you meant \[Y = \sqrt{X} -7\]
anonymous
  • anonymous
yeah parenthesis are important

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