Find the Domain of the Function $f ( y ) = \sqrt { 9 - y ^ { 2 } }$

question 66

Multiple Choice

Find the domain of the function. $f ( y ) = \sqrt { 9 - y ^ { 2 } }$

• A) \(- 3 \leq y \leq 3\)
• B) \(y \leq - 3\) or \(y \geq 3\)
• C) \(y \geq 0\)
• D) \(y \leq 3\)
• E) all real numbers

---

Definitions:

Microwave Ovens

Kitchen appliances that use microwave radiation to heat and cook food rapidly.

Marginal Cost

The increase in total cost that arises from producing one additional unit of a product or service.

Microwave Oven

A microwave oven is a kitchen appliance that heats and cooks food by exposing it to microwave radiation in the electromagnetic spectrum.

Total Variable Costs

The sum of all costs that vary with the level of output, such as materials and labor, which increase as production increases.