The path that a robot is following on x and y plane is found by interpolating four data points given in the table; y(x) = 0.15238x3 − 2.2571x 2 + 9.6048x − 3.9000 x 2 4.5 5.5 7 y 7.5 7.5 6 5 What is the length of the path from x = 2 and x = 7

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