Respuesta :

ANSWER

[tex]D. \: \: \frac{ {x}^{2} - 6}{3x + 1} \: ,x \ne - \frac{1}{3} [/tex]



EXPLANATION

The given functions are;


[tex]f(x) = 3x + 1[/tex]


and

[tex]g(x) = {x}^{2} - 6[/tex]


We want to find

[tex]( \frac{g}{f} )(x) [/tex]


Recall that,


[tex]( \frac{g}{f} )(x) = \frac{g(x)}{f(x)} [/tex]


This implies that,

[tex]( \frac{g}{f} )(x) = \frac{ {x}^{2} - 6}{3x + 1} [/tex]

The restriction on this function is that, the denominator must not be zero.


Thus

[tex]3x + 1 \ne0[/tex]



[tex]\Rightarrow x \ne - \frac{1}{3} [/tex]

Answer:

(D) [tex](\frac{g}{f})(x)=\frac{x^{2}-6}{3x+1}, x{\neq}-\frac{1}{3}[/tex]

Step-by-step explanation:

Given: f(x)=[tex]3x+1[/tex] and g(x)=[tex]x^{2}-6[/tex].

To find: [tex](\frac{g}{f})(x)[/tex]

Solution: Given that f(x)=[tex]3x+1[/tex] and g(x)=[tex]x^{2}-6[/tex], then applying the operations on the functions f(x) and g(x), we get

[tex](\frac{g}{f})(x)= \frac{g(x)}{f(x)}[/tex], f(x)≠0

[tex](\frac{g}{f})(x)=\frac{x^{2}-6}{3x+1}[/tex]

Thus, [tex](\frac{g}{f})(x)=\frac{x^{2}-6}{3x+1}, x{\neq}-\frac{1}{3}[/tex]

Hence, option D is correct.

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