AP Calculus AB: 2014 Free Response Q 4 (part d): Linear Approximation From A Given Model Equation

In this video, we used a given exponential equation (A(t)) to find the point (t, A(t)), and the slope A'(t) to (1) write a linear approximation equation and (2) to approximate when there will be 0.5 pounds of grass clippings remaining in the bin.