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3-34.

In many textbooks the derivative (or IROC) is described in terms of and (delta ) instead of and Homework Help ✎

  1. Explain why and are equivalent.

     can be translated as 'change in .' typically appears in the expression: . How are these equivalent?

  2. Use the diagram at right and the definition of IROC to write the slope of the tangent line in terms of and .

    'Definition of the Derivative' is the same thing as 'Instantaneous Rate of Change': IROC