Evaluate the function f(x) at the given numbers (correct to six decimal places). x- - 7x + -x-42 f(x) f(7.5) f(7.1) = f(7.05) f(7.01) = f(7.005) = f(7.001) = f(6.9) f(6.95) f(6.99) = = = = f(6.995) = f(6.999) = = x = 7.5, 7.1, 7.05, 7.01, 7.005, 7.001, 6.9, 6.95, 6.99, 6.995, 6.999 Guess the value of the limit of f(x) as x approaches 7, correct to six decimal places. (If an answer does not exist, enter DNE.) x - 7x lim x-7x-x - 42 =