Help this Metlab Exercise !

EXERCISE 5 Write a function file that creates the following piecewise function: | 3 -2.0, elseif condition else end Here is an example: Evaluate (23+2, 151 1 y = >1 for a given (but unknown) scalar x and, if x = 2, display "y is undefined at x = 2". function y=f(x) if x==2 disp('y is undefined at x = 2') elseif x > f(-1) ans = 1 >> f(2) y is undefined at x = 2 >> f(4) ans = 0.5000