Find the linear approximation L(x) of the function f(x)=1-x at a = 0. L(x) = 1 - () (x) X Use L(x) to approximate the numbers 0.9 and 0.99. (Round your answers to four decimal places.) V0.9 0.9334 X 0.99= 0.9933 X Use technology to graph fand the tangent line in the same viewing window. y 2 -2 5 y 2- 10 10 15 -2 -1 1 2 3