Find the Domain of the Rational Function $$g ( x ) = \frac { x + 7 } { x ^ { 2 } + 1 }$$

question 84

Multiple Choice

Find the domain of the rational function.
- $$g ( x ) = \frac { x + 7 } { x ^ { 2 } + 1 }$$

• A) all real numbers
• B) \(\{ x \mid x \neq 0 , x \neq - 1 \}\)
• C) \(\{ x \mid x \neq - 1 , x \neq 1 \}\)
• D) \(\{ x \mid x \neq - 1 , x \neq 1 , x \neq - 7 \}\)

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Definitions:

Level of Significance

A threshold in hypothesis testing that determines whether the null hypothesis can be rejected, often denoted by alpha (α).

Significance Level

A threshold within hypothesis testing that determines whether to reject the null hypothesis, often denoted by alpha (α) and representing the probability of a Type I error.

Kilometres

A unit of length in the metric system equal to 1,000 meters, commonly used to measure distances between geographical locations.

Mean Number

The average value of a set of numbers, calculated by dividing the sum of all numbers by the count of those numbers.