Find the Minimum Value of the Function $f ( x , y ) = x ^ { 2 } + \frac { 9 } { 2 } y ^ { 2 } - 9 y - 4 x y + 50$

question 114

Multiple Choice

Find the minimum value of the function $f ( x , y ) = x ^ { 2 } + \frac { 9 } { 2 } y ^ { 2 } - 9 y - 4 x y + 50$

• A)8.5
• B)18
• C)19
• D)10
• E)10.5
• F)9
• G)9.5
• H)50

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