Annie96
  • Annie96
What is the domain of k(x)=sqrt(x+4? A. all real numbers greater than or equal to 4. B. all real numbers greater than 0. C. all real numbers. D. all real numbers greater than or equal to 0.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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hartnn
  • hartnn
The quantity inside square root must be non-negative to get a real domain
hartnn
  • hartnn
so solve for x in \(\Large x+4 \ge 0\)
DanJS
  • DanJS
The domain are the possible values you can pick for X and get a Y value that makes sense

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DanJS
  • DanJS
real
Annie96
  • Annie96
Domain: [−4,∞),{x|x≥−4} Range: [0,∞),{y|y≥0}
hartnn
  • hartnn
yup thats correct
Annie96
  • Annie96
so its a
DanJS
  • DanJS
fancy, set , notation
hartnn
  • hartnn
your option A should have a -4 instead of 4 there.
DanJS
  • DanJS
yes the domain includes all the values possible for X that map to a value for Y
Annie96
  • Annie96
Thanks you guys.
DanJS
  • DanJS
y = root(x)|dw:1443162234484:dw|
DanJS
  • DanJS
no values are to left of y=0, welcome
DanJS
  • DanJS
x=0, sorry

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