Find the Center and the Radius of the Circle $$x ^ { 2 } + y ^ { 2 } - 18 x + 6 y + 54 = 0$$

question 80

Multiple Choice

Find the center and the radius of the circle.
- $$x ^ { 2 } + y ^ { 2 } - 18 x + 6 y + 54 = 0$$

• A) center \(( - 9,3 )\), radius \(= 36\)
• B) center \(( 9 , - 3 )\), radius \(= 6\)
• C) center \(( - 3,9 )\), radius \(= 6\)
• D) center \(( 3 , - 9 )\), radius \(= 36\)

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Definitions:

Net Cash Flow

The variance between the cash entering and leaving a business over a given timeframe.

Straight-Line Depreciation

A method of allocating the cost of a tangible asset over its useful life in equal installments, simplifying accounting computations.

Salvage Value

The projected sale proceeds of an asset at the conclusion of its period of utility.

Payback Period

The length of time it takes for an investment to generate enough cash flow to recoup its original cost.