Find the Focus, Directrix, and Focal Diameter of the Parabola $y ^ { 2 } = - 12 x$

question 56

Essay

Find the focus, directrix, and focal diameter of the parabola $y ^ { 2 } = - 12 x$ , and sketch its graph.

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Definitions:

Law of Demand

indicates the inverse relationship between the price of a good or service and the quantity demanded, with demand typically decreasing as prices increase, all else being constant.

Total Utility

The overall satisfaction or happiness received from consuming a certain amount of goods or services.

Reallocating Expenditures

The process of adjusting the distribution of spending across different areas or categories to better align with financial goals or constraints.

Budget Line

A budget line is a graphical representation of all possible combinations of two goods that can be purchased with a given budget, given their prices.