marcordova798 marcordova798
  • 19-05-2018
  • Mathematics
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What are the domain and range of this function

What are the domain and range of this function class=

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gmany
gmany gmany
  • 26-05-2018
[tex]f(x)=\sqrt{x-7}+9\\\\\text{the domain:}\\x-7\geq0\to x\geq7\\\\\text{the range:}\\\sqrt{x-7}\geq0\ \text{therefore}\ \sqrt{x-7}+9\geq9\\\\y\geq9[/tex]

[tex]Answer:\\domain:\ x\geq7\\range:\ y\geq9[/tex]
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-7(8 + k) -56 + 7k -7k - 56 -7k + 56