Find an Equation for the Parabola Described $( 7,8 )$ ; Focus At

question 114

Multiple Choice

Find an equation for the parabola described.
-Vertex at $( 7,8 )$ ; focus at $( 3,8 )$

• A) \(( y - 8 ) ^ { 2 } = - 16 ( x - 7 )\)
• B) \(( y - 8 ) ^ { 2 } = 16 ( x - 7 )\)
• C) \(( x - 8 ) ^ { 2 } = 20 ( y - 8 )\)
• D) \(( x - 8 ) ^ { 2 } = - 20 ( y - 8 )\)

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Definitions:

AVC

Average Variable Cost, an economic metric reflecting the variable costs (such as labor and materials) per unit of output.

ATC

Average Total Cost, which is the sum of all production costs divided by the quantity of output produced, a critical factor in economic analysis of a company's efficiency.

Shut-down Point

The level of operation at which a firm's total revenue is equal to its total variable costs, below which it is more beneficial for a firm to cease production.

Average Variable Cost

The variable cost (cost that changes with production volume) divided by the quantity of output produced.