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Angelica is working with function machines. She has the two machines  and . 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. Homework Help ✎

  1. In what order must she put the machines to get a final output of 5?

    Try substituting 6 for x in g(x) and then input the result into h(x). If that does not work, switch the order.

    Substitute 6 for each x.


    Substitute the output of the first function for x in the second function.

    The output needs to be 5.

  2. Is it possible for her to get a final output of −5? If so, show how she could do that. If not, explain why not.

    See above (original incorrect solution).