Find the Vertex, Focus, and Directrix of the Parabola $y = - \frac { 1 } { 2 } ( x + 1 ) ^ { 2 }$

question 86

Essay

Find the vertex, focus, and directrix of the parabola $y = - \frac { 1 } { 2 } ( x + 1 ) ^ { 2 }$ , and sketch its graph.

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Definitions:

Variable Cost

Costs that vary directly with the level of production or output, such as materials and labor.

Operating

The day-to-day activities or functions necessary for a business or organization to run effectively and efficiently.

Competitive Market

A market structure characterized by many buyers and sellers, free entry and exit, and a product for which there are many substitutes.

Profit

The financial gain obtained when the amount earned from a business activity exceeds the expenses, costs, and taxes involved in sustaining the activity.