Question

Maximum and minimum z=5x+2y

Answer 1

This answer friend maximum and minimum

Answer 2

Answer:

Step-by-step explanation:

for answer should find fx,fy,fxx,fyy and fxy

d(a,b)=fxxfyy-(fxy)^2

fx=5

fy=2

fxx=0

fyy=0

fxy=0

put fx=0

we get nothing

put fy=0

we get nothing

we know d(a,b)=fxxfyy-(fxy)^2

here fxx and fyy are independent of  x and y

you can see d<0

means  (x,y) are point of inflection

so minimum value= not defined

maximum value =not defined