jzrivera2002
jzrivera2002 jzrivera2002
  • 03-08-2017
  • Mathematics
contestada

If f(x)=5x-7 and g(x)√x-2 which statement is true?
-5 is in the domain or
-5 is not in the domain

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HomertheGenius
HomertheGenius HomertheGenius
  • 10-08-2017
If f ( x ) = 5 x - 7
f (  5 ) = 5 *  5  - 7 =  25 - 7 = 18
-  5 is in the domain
g ( 5 ) = √ ( 5 - 2 ) = √ ( - 3 )  ( this is an irrational number )
- 5 is not in the domain.
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