Use a Graphing Calculator to Graph the Function Using the Given

question 241

Multiple Choice

Use a graphing calculator to graph the function using the given viewing window. Use the graph to decide if the function
is one-to-one. If the function is one-to-one, give the equation of the inverse function.
- $f ( x ) = \frac { x + 1 } { x - 4 } ; [ - 10,10 ]$ by $[ - 10,10 ]$

• A) not one-to-one
• B) one-to-one; \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { \mathrm { x } - 4 } { \mathrm { x } + 1 }\)
• C) one-to-one; \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { 4 \mathrm { x } + 1 } { \mathrm { x } - 1 }\)
• D) one-to-one; \(\mathrm { f } ^ { - 1 } ( \mathrm { x } ) = \frac { 4 \mathrm { x } - 1 } { \mathrm { x } + 1 }\)

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Definitions:

Quoted Rate

The stated interest rate or financial charge on a loan or financial product.

Interest

The charge for borrowing money, typically expressed as a percentage of the amount borrowed.

Annuity

A monetary product offering a set sequence of disbursements to a recipient, frequently used to generate income for people who are retired.

Discount Rate

In finance, the interest rate used to discount future cash flows of a financial instrument to present value, reflecting the opportunity cost of capital.