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Name : Score: Math 148 Quiz 8: §10.3–10.4 Directions: Answer each question completely. credit, and circle your final answer. 1. Let f (x, y) = x2 Show all work to receive full ∂f xy . Find (−1, 2). + 2y ∂x 2. Find an equation of the tangent plane to the surface z = ex 1 2 +y 2 at (1, 0, e). 3. Find the linearization of f (x, y) = ln(x2 − 3y) at (1, 0) and use it to approximate f (1.1, 0.1). 4. Find the Jacobian matrix for the vector function F~ (x, y) = h2x2 y − 3y + x, ex sin yi. 2