i have tried manipulating this code several secerap times and nothing i have done has worked. i have provided the wuestion i am trying to solve as well

EXERCISE 5 Write a function file that creates the following piecewise function: le-11, 35 f(x) = -2x-1, 5 5 & X 10 y = x/(x-11) defines the third equation in the piecewise function end end end end Command Window >> f(4) Undefined function or variable >> y(4) Index exceeds the number of array el >>