Find the Focus and Directrix of the Parabola $$y = - 7 x ^ { 2 }$$

question 179

Multiple Choice

Find the focus and directrix of the parabola.
- $$y = - 7 x ^ { 2 }$$

• A) \(\left( 0 , - \frac { 1 } { 28 } \right) , y = \frac { 1 } { 28 }\)
• B) \(\left( 0 , - \frac { 1 } { 7 } \right) , x = \frac { 1 } { 7 }\)
• C) \(\left( 0 , - \frac { 1 } { 28 } \right) , y = - \frac { 1 } { 28 }\)
• D) \(\left( - \frac { 1 } { 28 } , 0 \right) , x = \frac { 1 } { 28 }\)

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Definitions:

Profitability

A rephrasing of profitability analysis, it refers to a company's ability to generate profit from its operations relative to its costs.

Productivity

A measure of efficiency that shows the amount of output produced per unit of input.

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The ability of an asset to be quickly converted into cash without significant loss in value, or a company's ability to meet its short-term obligations.

IFRS

International Financial Reporting Standards, a set of accounting guidelines providing a global framework for financial statements.