The Hyperbola
1 Locate a Hyperbola's Vertices and Foci
- $\frac { y ^ { 2 } } { 100 } - \frac { x ^ { 2 } } { 81 } = 1$

question 217

Multiple Choice

The Hyperbola
1 Locate a Hyperbola's Vertices and Foci
- $\frac { y ^ { 2 } } { 100 } - \frac { x ^ { 2 } } { 81 } = 1$

• A) vertices: \(( 0 , - 10 ) , ( 0,10 )\)
• foci: \(( 0 , - \sqrt { 181 } ) , ( 0 , \sqrt { 181 } )\)
• B) vertices: \(( - 9,0 ) , ( 9,0 )\)
• foci: \(( - \sqrt { 181 } , 0 ) , ( \sqrt { 181 } , 0 )\)
• C) vertices: \(( 0 , - 10 ) , ( 0,10 )\)
• foci: \(( - \sqrt { 181 } , 0 ) , ( \sqrt { 181 } , 0 )\)
• D) vertices: \(( - 10,0 ) , ( 10,0 )\)
• foci: \(( - 9,0 ) , ( 9,0 )\)

---

Definitions:

Expected Frequency

The theoretical frequency or count of occurrences predicted for a category within a distribution, based on probability calculations.

Police Job

Refers to the profession and duties of individuals who are empowered to enforce the law, protect property, and limit civil disorder.

Walk After Dark

An action or activity referring to moving on foot outdoors during nighttime hours.

Expected Frequency

The theoretical frequency of an event or category predicted by a statistical model or hypothesis within a dataset.