1 Answer

Yusuf Hassan · Answer 1 · 2023-04-07T04:52:36+0000

${ \qquad\qquad\huge\underline{{\sf Answer}}}$

Here we go ~

Every value of x, for which y is defined and has a finite value is called domain of a function.

The given function is :

$\qquad \sf  \dashrightarrow \: \cfrac{7x + 4}{13 - x}$

The value of x for which denominator isn't equal to zero are all included in domain of this function,

So,

$\qquad \sf  \dashrightarrow \: 13 - x \\e0$

$\qquad \sf  \dashrightarrow \: - x \\e - 13$

$\qquad \sf  \dashrightarrow \: x \\e13$

Domain of given function :

$\qquad \sf  \dashrightarrow \: D \in \: R - \{13\}$

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