python 3.7 please help with exercise 5

Exercise 5: Plot the following functions into a single graph BUT use a subplot for each function. So your figure has 3 subplots inside. Add super title to the graph. Then for each subgraph add axes labels and a title. . f(x) = ln(x) for x > 0, The derivative of f(x) that you can call g(x) = f'(x) for x > 0 and h(x) = |x|for x (-4,4). Note This is not a composite function! Just three separate functions. You do not need an if command for this. Just define the xv vector for the ranges given