Plsssds help

Secant method is given by A MATLAB Script (with bug), using the 'for-loop', to compute the root of fix) x4 -23 is given by x1 f1-x14-16; =0; x2 =3; f2-x2^4-16; n:3 for i-1:n df (f2 f1) (x1-x2); x3 x1+x2/df; f3 x3*4-16; disp([i x1 x2 x3]) end (a) Fix the bug and write the correct code. (b) What is the value of the root closest to at 8 iteration