Find the relative extrema and saddle points of the function. (If an answer does not exist, enter DN f(x, y) = x² + y²+4x-8y + 3 Relative maximum of f(x, y) = at (x, y) = Relative minimum of f(x, y) = at (x, y) = Saddle point of f(x, y) = at (x, y) = ALC10 7.5.008. 0/15 Submissions Used Find the relative extrema and saddle points of the function. (If an answer does not exist, enter DNE.) f(x, y) = √√√25-(x-7)² - y2 Relative maximum of f(x, y) = at (x, y) = Relative minimum of f(x, y) = at (x, y) = Saddle point of f(x, y) = at (x, y) =

Use the second derivative test to identify any critical points and determine whether each critical point is a maximum, minimum, saddle point, or none of these. f(x, у) %3D —х2 - бу? + 12х — 36у — 87 (х, у, 2) %3D maximum

(1 point) Differentiate y = Vx + Vx + vx. ||