Foundation November 2021 Paper 1 Q9
9.
(a) 
Here is a number machine.
(i)
The input is 6.
What is the output? [1]
(ii)
The input is \(2x\).
Write an expression for the output.
Simplify your answer. [2]
(b) 
Here is a different number machine.
When the input is 12 the output is 0·4.
Complete the number machine.
You must use multiplication or division. [1]
| Scheme | Marks | Comments |
|---|---|---|
| (i) 45 | B1 | |
| (ii) \(14x + 3\) | B2 | Mark final answer B1 for sight of a correct expression e.g. \(2x \times 7 + 3\) |
| Scheme | Marks | Comments |
|---|---|---|
| Divide by 10 or ÷10 or multiply by \(\dfrac{1}{10}\) or \(\times \dfrac{1}{10}\) oe | B1 | If number machine blank check working underneath but number machine takes precedence |
| (4) |