Find the Largest Open Interval Where the Function Is Changing $\quad f ( x ) = \frac { 1 } { x ^ { 2 } + 1 }$

question 104

Multiple Choice

Find the largest open interval where the function is changing as requested.
-Increasing $\quad f ( x ) = \frac { 1 } { x ^ { 2 } + 1 }$

• A) \(( - \infty , 1 )\)
• B) \(( 0 , \infty )\)
• C) \(( - \infty , 0 )\)
• D) \(( 1 , \infty )\)

---

Definitions:

Sales Dollars

The total revenue generated from the sale of goods and services within a specific period.

Common Fixed Expenses

These are fixed costs that are not directly tied to production levels, such as salaries, rent, and insurance, which are shared across different segments of a business.

Break-Even

The point at which total costs and total revenues are equal, meaning that a business or product is neither making a profit nor sustaining a loss.

Sales Dollars

The total revenue generated from the sale of goods or services by a company before any expenses are deducted.