Question: QUESTION 1 The function f ( x , y ) = 1 + 2 x + 4 y - x 2 - 2 y 2

QUESTION 1
The function f(x,y)=1+2x+4y-x2-2y2 has one critical point (a,b) and
a.f(a,b)=8
b.f has a local maximum at (a,b)
c.fxy(a,b)=3
d.f has a saddle point at (a,b)
e.f has a local minimum at (a,b)
QUESTION 1 The function f ( x , y ) = 1 + 2 x + 4

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