Video lesson finding the slope of a tangent line of a general quadratic function at a point by finding the limit of the slope of the secant line. Continues on to find the derivative of the function for any point. Includes link to...

Video introducing a derivative as the slope of a tangent line by reviewing the concept of the slope of a line and using that to find the slope of a secant line. Includes link to additional practice problems. [9:25]

Video introducing a derivative as the slope of a tangent line by reviewing the concept of the slope of a line. Includes link to additional practice problems. [15:43]

Video lesson finding the slope of a tangent line of a function at a point by finding the limit of the slope of the secant line. Includes link to additional practice problems. [8:28]