Lesson: Function Machines Mathematics

In this lesson, we will learn how to use function machines to find the function rule and evaluate direct and inverse operations.

Lesson Video

Q1:

Find the value of the function for the input given using the function machine.

Q2:

Elizabeth has drawn a function machine with two different inputs as seen in the figure.

Work out the missing operation that she has left out of the first box.

Q3:

Use the function machine to find the input which gives an output of 18.