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Estimating a Limit Numerically In Exercises 5-10, complete the table and use the result to estimate the limit. Use a graphing utility to graph the function to confirm your result. x - 4 5. lim 1-4x2 - 5x + 4 X 3.9 3.99 3.999 4 4.001 4.01 4.1 f(x) 6. lim x+1-1 X -0.1 -0.01 -0.001 0 0.001 0.01 0.1 f(x) sin x 7. lim 140 r -0.1 -0.01 -0.001 0 0.001 0.01 0.1 f(x) 8. lim COS X - 1 r -0.1 -0.01 -0.001 0 0.001 0.01 0.1 f(x) 9. lim * - 1 X -0. 1 -0.01 -0.001 0 0.001 0.01 0.1 f(x)