Suppose that we don't have a formula for g(x) but we know that g(1) = −5 and g'(x) = x2 + 8 for all x.Use a linear approximation to estimate g(0.9) and g(1.1).g(0.9) ≈ g(1.1) ≈

Find the linear approximation of the function g(x) = 31 + x at a = 0.g(x)≈ Use it to approximate the numbers 30.95 and 31.1. (Round your answers to three decimal places.)30.95≈ 31.1≈

Use a linear approximation (or differentials) to estimate the given number.100.4

Suppose the linear approximation for a function f(x) at a = 2 is given by the tangent line y = −2x + 10.What are f(2) and f '(2)?f(2) = f '(2) = If g(x) =[f(x)]2, find the linear approximation for g(x) at a = 2.L(x) =

Find the linearization of the function f(x) = x + 1 at a = 8 and use it to approximate the numbers 8.95 and 9.04. Are these approximations overestimates or underestimates?SolutionThe derivative of f(x) = (x + 1)1⁄2 isf ′(x) = 12​(x+1)−(12​) ,and so we have f(8) = and f ′(8) = . Putting these values into the equation L(x) = f(a) + f ′(a)(x − a), we see that the linearization isL(x)= f(8) + f '(8)(x − 8) = +  (x − 8)= .The corresponding linear approximation isx + 1 ≈ + x6        (when x is near 8).In particular, we have8.95 ≈ 53 + 6 =     (round to four decimal places)and  9.04 ≈ 53 + 6 =     (round to four decimal places).

Find the linear and quadratic approximations to the following function about x = 0 :f (x) = (1 + x)5and so find approximations for 1.055