Maximum value: $\approx 59$ and Minimum value: $30$.
Work Step by Step
We are given a contour map of $f$ and a curve with equation $g(x,y)=8$. We need to find the maximum and minimum values of $f$ subject to $g(x,y)=8$. Since the constraint $g(x,y)=8$ comes under $60$ and $30$, the maximum value is: $\approx 59$ and minimum value is: $30$.