### Home > PC > Chapter 3 > Lesson 3.2.2 > Problem 3-76

3-76.

Joe has hooked up two function machines as shown in the diagram. When he puts

What comes out of the “

” machine when goes in? because . Now put

into the “ ” machine. What number comes out of this machine and goes into the “ ” machine? What then comes out of the “ ” machine? . goes into the machine. because . If

goes into the “” machine, comes out. Ifthen goes into the “” machine, what comes out? If then, …If

goes into the “” machine, comes out. Write this in mathematical notation.If this same

goes into the “” machine, the original comes out. Write this in mathematical notation.Do your answers to parts (d) and (e) say exactly the same thing?

Yes