The figure shows the graph of a function f, suppose that Newton€™s method is used to approximate the root of the equation f(x) = 0 with initial approximation x1 = 1.
(a) Draw the tangent lines that are used to find x2 and x3, and estimate the numerical values of x2 and x3.
(b) Would x1 = 5 be a better first approximation?

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