Home/Calculus/Introductory Ideas/First Calculations; Linear Approximations, DifferentialsA. First Calculations; Linear Approximations, DifferentialsFirst calculations, linear approximations, and differentials.Topics in this SectionA.1 First CalculationsA.2 Generalizing to Other Rates of ChangeA.3 Introducing Linear ApproximationsA.4 Practice Problems: Linear ApproximationsA.5 Differentials; Steps Toward Determining df/dx at x=aA.6 Estimating df/dx at x=a Graphically