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Home > CCA > Chapter 1 > Lesson 1.1.2 > Problem 1-22

1-22.

Function Machines

  1. If an input of is put into each of the machines at right, what is each output?

    Substitute for in each of the equations in both the machines, then solve the equations for .

  2. Eric wants to get an output of . Can he do this with each machine? If so, how? If not, why not?

    What numbers could Eric substitute in the equations to get ?
    Is it possible to get this answer from both machines?

    Function B: No solution. Do you know why?

A Function Machine with an arrow going in. The Rule within the machine is y = x squared + 3. There is an arrow exiting the machine.A Function Machine with an arrow going in. The Rule within the machine is y = squareroot of x minus 2. There is an arrow exiting the machine.