Which of the following statements are correct? A script file called ceac.acript. .m contains the following comrnands (in the shown order) it is an invalid script file and MATLAB will throw an error. test_function ([2030]) function a= test_function (x) a=x( end 1)+x(1); end test_function ([ [30 40] ) To save the following function as a function fle, the file name must Teat_funct 10n.a function a = test_function (x) end a=x(end1)+x(1) : A function is a colection of code that performs a single retated action. M-files are used for stering commands for future use and for easier execution of a group of commands. Like a mathematical function. a function in MATLAB must have an input and an output