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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §2.1 The Derivative of a Function, #21 · Calculus · Derivatives

Find the average slope of … between … and

Find the average slope of $y = x^{2}$ between $x = x_{1}$ and $x = x_{2}$ . What does this average approach as $x_{2}$ approaches $x_{1}$ ?

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §2.1 The Derivative of a Function, #21

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