Find the Standard Form of the Equation of the Parabola $$x ^ { 2 } = - 4 y$$

question 9

Multiple Choice

Find the standard form of the equation of the parabola and determine the coordinates of the focus.

• A) \[x ^ { 2 } = - 4 y\] ,focus: \(\left( 0 , - \frac { 1 } { 4 } \right)\)
• B) \(x ^ { 2 } = - \frac { 1 } { 16 } y\) ,focus: \(\left( 0 , - \frac { 1 } { 16 } \right)\)
• C) \(x ^ { 2 } = - \frac { 1 } { 4 } y\) ,focus: \(\left( 0 , - \frac { 1 } { 16 } \right)\)
• D) \(x ^ { 2 } = - 4 y\) ,focus: (0,-4)
• E) \(x ^ { 2 } = - \frac { 1 } { 4 } y\) ,focus: \(\left( 0 , - \frac { 1 } { 4 } \right)\)

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