I need help to solve this MATLAB question?

20 24 680 Exercise 2: Consider the function defined by the graph above. It is an example of a saw-tooth pulse (a common signal in electrical engineering). Create a user-defined function that recaptures the above function. In defining the function, only use if-statements. Your function ought to have the following function-header: function y = sawpulse (x) Call the function several times, passing the values -2, 2, 3, 4, 5, and 6 to it to check that it behaves as expected