Let Find the Derivative of and the Point

question 183

Multiple Choice

Let . Find the derivative of and the point on the graph of where the tangent line to the curve is horizontal.

• A) ; ( )
• B) ; ( )
• C) ; ( )
• D) ; ( )
• E) ; ( )

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Definitions:

WACC

Weighted Average Cost of Capital, a calculation of a firm's cost of capital in which each category of capital is proportionately weighted.

Appropriate Discount Rate

The rate used to discount future cash flows to their present value to account for risk and time value of money, reflecting the opportunity cost of capital.

Interest Rate

The share of a loan incurred as interest costs to the borrower, habitually depicted as an annual percentage of the loan's outstanding amount.

Marginal Tax Rate

The rate at which the last dollar of income is taxed, indicating the proportion of any additional dollar of income that must be paid in taxes.