Find the Directrices of the Ellipse $16 x ^ { 2 } + 81 y ^ { 2 } = 1296$

question 263

Multiple Choice

Find the directrices of the ellipse.
- $16 x ^ { 2 } + 81 y ^ { 2 } = 1296$

• A) \(x = \pm \frac { 81 } { \sqrt { 97 } }\)
• B) \(y = \pm \frac { 9 } { \sqrt { 65 } }\)
• C) \(y = \pm \frac { 81 } { \sqrt { 65 } }\)
• D) \(x = \pm \frac { 81 } { \sqrt { 65 } }\)

---

Definitions:

Symptoms

Physical or mental features that are regarded as indicating a condition or disease.

Major Depressive Disorder

A mental disorder characterized by at least two weeks of persistent sadness and loss of interest in activities, often accompanied by physical symptoms.

Intense Feelings

Strong and deep emotions that can be overwhelming and significantly impact an individual's mood and behavior.

Appetite

The natural desire to satisfy bodily needs, especially for food.