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emerald111
emerald111 emerald111
  • 27-03-2016
  • Mathematics
Answered

Is this answer correct? The answer I got was -4 is less than or equal to x

Is this answer correct? The answer I got was -4 is less than or equal to x class=

Verified Answer :

nobrains
nobrains nobrains
  • 27-03-2016

It would be correct if it asked for the range, but it's asking for the domain (x values).

The domain of a function excludes imaginary numbers, and you get an imaginary number when x is negative (square root of negative number is imaginary). So x has to be greater than or equal to 0. That's the domain.

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