HW Score: 85%, 30.6 of 36 points X Points: 0 of 1 Save Find the extremum of f(x,y) subject to the given constraint, and state whether it is a maximum or a minimum. f(x,y) = 90 - x - y; x+ 9y = 82 . . . There is a value of located at (x,y) = (Simplify your answers.)HW Score: 85%, 30.6 of 36 points X Points: 0 of 1 Save Find the extremum of f(x,y) subject to the given constraint, and state whether it is a maximum or a minimum. f(x,y) = 3x + 3y ; 3x +4y=225 . . . There is a value of located at (x, y) = 7. (Simplify your answers.)