In this lesson, we learn about the formula for the derivative and how it gives us the slope of a tangent line to a curve. We see how to find the derivative for a linear function and how the slope of the tangent line is the same as the slope of the line itself. We also practice finding the derivative for a quadratic function and seeing how the slope of the tangent line varies at different points on the curve.
An introduction to derivatives and tangent lines to curves.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com