Write the Quadratic Function $f ( x ) = \frac { 1 } { 4 } \left( x ^ { 2 } + 8 x - 20 \right)$

question 14

Multiple Choice

Write the quadratic function $f ( x ) = \frac { 1 } { 4 } \left( x ^ { 2 } + 8 x - 20 \right)$ in standard form.

• A) \(f ( x ) = \frac { 1 } { 4 } ( x + 4 ) ^ { 2 } - 9\)
• B) \(f ( x ) = \frac { 1 } { 4 } ( x - 9 ) ^ { 2 } + 4\)
• C) \(f ( x ) = \frac { 1 } { 4 } ( x - 4 ) ^ { 2 } + 9\)
• D) \(f ( x ) = - \frac { 1 } { 9 } ( x + 4 ) ^ { 2 } - 9\)
• E) \(f ( x ) = - \frac { 1 } { 9 } ( x - 4 ) ^ { 2 } - 9\)

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