Problems 43 and 44 refer to the graph of y = f(x) = x 2 + x

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Problems 43 and 44 refer to the graph of y = f(x) = x2 + x shown.
-5 f(x) 20 + 15 10 f(x) = x2 + x 5 (A) Find the slope of the secant line joining (1, f(1)) and (3, f(3)). (B) Find the slope of the secant line

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