Select the Polar Equation of the Conic for E = $r = \frac { 2 e } { 1 + e \cos \theta }$

question 327

Multiple Choice

Select the polar equation of the conic for e = 1.0 and identify the conic for the following equation. $r = \frac { 2 e } { 1 + e \cos \theta }$

• A) \(r = \frac { 2 } { 1 + \cos \theta } \Rightarrow \text { hyperbola }\)
• B) \(r = \frac { 2 } { 1 + \cos \theta } \Rightarrow \text { parabola }\)
• C) \(r = \frac { 1 } { 1 + \cos \theta } \Rightarrow \text { hyperbola }\)
• D) \(r = \frac { 2 } { 1 - \cos \theta } \Rightarrow \text { parabola }\)
• E) \(r = \frac { 1 } { 1 - \cos \theta } \Rightarrow \text { hyperbola }\)

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Definitions:

Phloem

The vascular tissue in plants responsible for the transport of nutrients, especially sugars, produced by photosynthesis to various parts of the plant.

Cortex

(1) The outer part of an organ, such as the cortex of the kidney. Compare with medulla. (2) The tissue between the epidermis and vascular tissue in the stems and roots of many herbaceous plants.

Ground Tissue

Tissue found in plants, making up the bulk of the non-vascular structure, responsible for photosynthesis, storage, and support.

Periderm

The protective outer layer of tissue in some plants, replacing the epidermis as the plant grows older.