Identify the "Inside Function $u = f ( x )$ And the "Outside Function

question 82

Short Answer

Identify the "inside function" $u = f ( x )$ and the "outside function" $y = g ( u )$ . Then find $d y / d x$ using the Chain Rule.
$$y = \sqrt { x ^ { 2 } - 2 }$$

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Definitions:

Direct Materials

Raw materials that are directly traceable to the manufacturing of a product and are a significant part of its composition.

Actual Cost

The actual amount spent on goods, services, and labor to produce an item or to run a company.

Data Collected

The process of gathering and measuring information on targeted variables to answer relevant questions and evaluate outcomes.

Direct Materials Price Variance

The difference between the actual cost of direct materials used in production and the standard cost, multiplied by the actual quantity of materials used.