Write the Standard Form of the Equation of the Parabola $\left( \frac { - 2 } { 3 } , \frac { 1 } { 9 } \right)$

question 26

Multiple Choice

Write the standard form of the equation of the parabola that has a vertex at $\left( \frac { - 2 } { 3 } , \frac { 1 } { 9 } \right)$ and passes through the point $( 3 , - 4 )$ .

• A)
• \[f ( x ) = - \frac { 37 } { 11 } \left( x + \frac { 2 } { 3 } \right) ^ { 2 } + \frac { 1 } { 9 }\]
• B)
• \[f ( x ) = - \frac { 37 } { 121 } \left( x - \frac { 3 } { 2 } \right) ^ { 2 } + \frac { 1 } { 9 }\]
• C)
• \[f ( x ) = - \frac { 37 } { 121 } \left( x + \frac { 2 } { 3 } \right) ^ { 2 } + \frac { 1 } { 9 }\]
• D)
• \[f ( x ) = - \frac { 37 } { 11 } \left( x - \frac { 2 } { 3 } \right) ^ { 2 } - \frac { 1 } { 9 }\]
• E)
• \[f ( x ) = - \frac { 37 } { 25 } \left( x - \frac { 3 } { 2 } \right) ^ { 2 } - \frac { 1 } { 9 }\]

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Definitions:

Price Sensitivity

A measure of how the price of a product or service affects the demand for that product or service.

Par Value Bond

A bond that is selling for its original face value, as opposed to above (a premium) or below (a discount).

Modified Duration

A measure of the sensitivity of a bond's price to changes in interest rates, indicating the price change in percentage terms for a yield move of one percent.