I found the answer for Q7. The value of y is 0.2 Please help me to figure out Q8.

Question 7 (2 points) Previously correct Maximise -x2 + 1.0x - y2 + 0.4y using only points within the sphere {1:2 + y2 g 1 . What is the value of y at the optimum? (Round to one decimal point.) [> View hint for Question 7 A QUEStiOh 8 (3 points) Retake question Now consider maximising -x2 + 10x y2 + 12y within the same sphere, but with the added restriction that y is not positive. At the optimum, what is the value of the Lagrange multiplier associated with the sphere restriction? Your Answer: :3