Edexcel – foundation
\[ \begin{array}{l} \text{Maya is asked to show the inequality } -4 \le x < 3 \text{ on a number line.} \\ \text{Here is her answer:} \\ \text{(See diagram)} \end{array} \]
(a) \[ \begin{array}{l} \text{Write down two mistakes Maya has made.} \end{array} \] (2 marks)
(b) \[ \begin{array}{l} \text{Work out the greatest integer that satisfies the inequality} \\ 7z - 4 \le 36 \end{array} \] (2 marks)