# Lesson Worksheet: Function Machines Mathematics

In this worksheet, we will practice using function machines to find the function rule and evaluating direct and inverse operations.

**Q1: **

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

**Q3: **

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

**Q4: **

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

**Q5: **

Use the function machine to find the output when the input is 10.

**Q6: **

Use the function machine to find the output when the input is 4.

**Q7: **

Use the function machine to find the input which gives an output of 2.5.

**Q8: **

The figure shows a function machine with two different inputs and the intermittent calculations.

Determine the three missing operations.

- A
- B
- C
- D
- E

**Q9: **

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

**Q10: **

Use the function machine to find the input which gives an output of 21.