Question 12. (20 marks) Let y = f(1) = x2 +1 +1 (a) Find y' = dy/dr. (b) Find the equation of the tangent line to the function at the point i = 0. (c) Find Ay (the actual change in y) and dy (the differential) at r=0 if dr = 0.01. (d) Sketch f(x), the tangent line and indicate f(0), Ay and dy.

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Hubert KochLv2

24 May 2018

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