Find the Exact Location of All the Relative and Absolute $f ( x ) = \frac { 8 } { x } - \frac { 4 } { x ^ { 2 } }$

question 69

Multiple Choice

Find the exact location of all the relative and absolute maxima of the function. $f ( x ) = \frac { 8 } { x } - \frac { 4 } { x ^ { 2 } }$
Select all correct answers.

• A) \(( 1 , - 4 )\) - absolute maximum
• B) \(( 4 , - 8 )\) - absolute minimum
• C) \(( - 1,8 )\) - relative maximum
• D) \(( 1,4 )\) - absolute minimum
• E) \(( 1,4 )\) - absolute maximum

Comprehend the internal rate of return (IRR) and its role in evaluating investment opportunities.

Understand the payback and discounted payback methods and their limitations.

Recognize the concept of profitability index and its relation to NPV.

Apply the concept of average accounting return (AAR) and its significance in project evaluation.

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Definitions:

Weighted-Average Method

This method averages out the costs of inventory by adding the cost of all units available for sale and dividing by the total number of units.

Equivalent Units of Production

A concept in cost accounting used to allocate costs to partially completed goods, expressed in terms of fully completed units.

First-In, First-Out Method

An inventory valuation method where the oldest inventory items are recorded as sold first, with the cost of these oldest items used for accounting purposes.

Weighted-Average Method

An inventory costing method that averages the cost of goods available for sale and assigns the average cost to ending inventory and cost of goods sold.