Use the Zero or Root Feature of a Graphing Utility $f ( x ) = 2 x ^ { 3 } + 8 x ^ { 2 } - 5 x - 7$

question 24

Multiple Choice

Use the zero or root feature of a graphing utility to approximate the zeros of
$f ( x ) = 2 x ^ { 3 } + 8 x ^ { 2 } - 5 x - 7$ accurate to the nearest thousandth.

• A) \(x = - 8.492 , - 0.695,1.186\)
• B) \(x = - 3.575\)
• C) \(x = - 3.910 , - 0.763,1.173\)
• D) \(x = - 4.692\)
• E) \(x = - 4.388 , - 0.720,1.108\)

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Definitions:

Inflation Adjusted Risk

Refers to the danger of losing purchasing power of an investment due to inflation outpacing the returns.

Systematic Risk

The inherent risk of exposure to market changes that cannot be diversified away, affecting all securities in a similar manner.