ellamai16 ellamai16
  • 13-12-2018
  • Mathematics
contestada

What is the domain of f/g, given f(x)=x+2 and g(x)=x-7?

What is the domain of fg given fxx2 and gxx7 class=

Respuesta :

lisboa lisboa
  • 13-12-2018

Answer:

(-∞,7) U (7,∞)

Step-by-step explanation:

f(x)= x+2

g(x) = x-7

[tex]\frac{f(x)}{g(x)} =\frac{x+2}{x-7}[/tex]

Here we have x-7 in the denominator

To find domain we set the denominator =0  and solve for x

x-7=0

Add 7 on both sides

x=7

x=7 makes the denominator 0 that is undefined

So we ignore 7 for x

Hence domain is

(-∞,7) U (7,∞)

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netflixacc0107
netflixacc0107 netflixacc0107
  • 21-12-2018

Answer:

The correct answer i believe is A.


Answer Link

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