Find the derivative of the reciprocal function using the difference quotient

The video tutorial explains how to find the equation of a tangent line at any point on a graph using the difference quotient. It begins with an introduction to tangent lines and their slopes, followed by a detailed exploration of the difference quotient. The instructor demonstrates how to simplify the difference quotient using algebraic techniques and derive the final equation for the tangent line. The session concludes with a Q&A segment addressing student questions.

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