Determine the highest real root of f(x) = -3x - 4x + 12 2 a) by...

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Determine the highest real root of f(x) = -3x - 4x + 12 2 a) by graphing it in MATLAB (sketch your plot and give an approximate value) b) using 3 iterations (by hand) of Newton-Raphson. Make a table with xn, f(x), f'(x), and ea for all iterations. Use x0 = 6. c) using 3 iterations (by hand) of secant method. Make a table with xn, f(x), and ea for all iterations. Use x-1 = 5, x0 = 6. d) using MATLAB fzero(). Use x0 = 6. (briefly write the code you used to solve this) e) Find all roots using MATLAB roots(). (write down the code you used to solve this) Determine the highest real root of f(x) = -3x - 4x + 12 2 a) by graphing it in MATLAB (sketch your plot and give an approximate value) b) using 3 iterations (by hand) of Newton-Raphson. Make a table with xn, f(x), f'(x), and ea for all iterations. Use x0 = 6. c) using 3 iterations (by hand) of secant method. Make a table with xn, f(x), and ea for all iterations. Use x-1 = 5, x0 = 6. d) using MATLAB fzero(). Use x0 = 6. (briefly write the code you used to solve this) e) Find all roots using MATLAB roots(). (write down the code you used to solve this)