Let $f ( x , y ) = 6 x - 24 y - x ^ { 2 } + 2 y ^ { 3 }$ . Then f has a relative maximum at

A) $( 3 , - 1 )$
B) $( 3,1 )$
C) $( 3 , - 2 )$
D) $( 3,2 )$
E) $( - 3,2 )$

Question

Let $f ( x , y ) = 6 x - 24 y - x ^ { 2 } + 2 y ^ { 3 }$ . Then f has a relative maximum at

A) $( 3 , - 1 )$
B) $( 3,1 )$
C) $( 3 , - 2 )$
D) $( 3,2 )$
E) $( - 3,2 )$

Quizplus · Accepted Answer

The Answer of Let $f ( x , y ) = 6 x - 24 y - x ^ { 2 } + 2 y ^ { 3 }$ . Then f has a relative maximum at

A) $( 3 , - 1 )$
B) $( 3,1 )$
C) $( 3 , - 2 )$
D) $( 3,2 )$
E) $( - 3,2 )$

Let f(x,y)=6x−24y−x2+2y3f ( x , y ) = 6 x - 24 y - x ^ { 2 } + 2 y ^ { 3 }f(x,y)=6x−24y−x2+2y3