### Home > INT3 > Chapter 5 > Lesson 5.1.2 > Problem 5-29

5-29.

Lacey and Richens each have a personal function machine. Lacey’s machine, *L*(*x*), squares the input and then subtracts 1. Richens’ function machine,*R*(*x*), adds 2 to the input and then multiplies the result by 3. Homework Help ✎Write equations that represent

*L*(*x*) and*R*(*x*).Lacey and Richens decide to connect their two machines so that Lacey’s output becomes Richens’ input. If 3 is the initial input, what is the final output?

What if the order of the machines is changed? Would it change the output? Justify your answer.

*R*(*x*) = 3(*x* + 2)

30

Try computing the result for *x* = 3 if the order is reversed.