Angelica is working with function machines. she wants to put them in order so that the output of the first machine becomes the input of the second. she wants to use a beginning input of 6.
1. in what order must she put the machines to get a final output of 5?
2. is it possible for her to find an input that will get a final output of -5? if so, show how she could do that. if not, explain why not.