Attempt 2 Estimate Af using the Linear Approximation and use a calculator to compute both the error and the percentage error. f(x) = V8+ x, a= 4, Ax =0.4 (Use decimal notation. Give your answer to seven decimal places.) Af ~ (Use decimal notation. Give your answer to five decimal places.) The error in the Linear Approximation is (Use decimal notation. Give your answer to two decimal places.) The error in percentage terms is