In Matlab write a code that solves the given first order ODE using 4th order R-K method

Consider the following first order ODE xy ?=x- dx 2 from x=1 to 5 with y(1)=1; Solve with 4th order R-K method using a step size of 0.1. Your code should have the following properties: i) Slopes should be calculated in a separate function file and called from a main m-file at each step. The code should be generalized so that in order to evaluate a different function you need minimal change in the code (i.e., only f(ix,y) has to be changed). ii)