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

Respuesta :

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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