Create a new folder for Module4 in your Matlab1051 folder (that you created last week). Make sure this your Current Folder. If unsure, please ask a tutor. Create a new script using the command: >> edit gausElim and click 'Yes' to create a new file. In the script you created above, copy-paste the following code: %gaus Elim.m AWN 000 % create matrices A and b, %ready for computing Ax=b A = [1 -2 4; 2 -3 9; 5 -9 21]; b = [1;4;7]; % augment the matrices %using concatenation Ab_aug = (A b] % use the RREF function to % do row reduction on (Ab) 12 rowRed = rref (Ab_aug) 13 % find the nullspace of the matrix A 14 nullspace = null(A, 'r') Save and Run your code. You should see the following output in your Command Window. >> gausElim 10 Ab_aug = 1 -2 2- 39 5 -9 rowRed = 1 0 0 1 6 1 nullspace = Exercise 5 After running gausElim, what part of your output is the particular solution, p, to Ax=b, where x=p+y? How would you use indexing to set the variable p to the above? >> p = rowRed What about y