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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 .

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

    Try substituting for in and then input the result into . If that does not work, switch the order.

    Substitute for each .


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

    The output needs to be .

    Equation: h of 1 = negative 5, with a large x across it.

  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).