Calc 1, Lec 4A: Exponential Problems, Linear vs Exponential Modeling of GDP, Function Composition

(0:00) Introduction.
(0:52) Exponential equation problem solving.
(8:19) Use Mathematica to solve another problem.
(12:50) Visual of exponential growth (how it converts addition of inputs into multiplication of outputs).
(15:24) Graphical analysis of Gross Domestic Product (GDP) of the United States from 2009 through 2018. Would it be better modeled by a linear function or an exponential function (based on the randomness of the residuals when curve fitting)? Use a Google spreadsheet along the way.
(26:09) Function composition (functions applied in sequence).