\(\dfrac{-7 + 3}{2} \leqslant x \lt \dfrac{5 + 3}{2}\) or
\(\dfrac{-7}{2} + \dfrac{3}{2} \leqslant x \lt \dfrac{5}{2} + \dfrac{3}{2}\)
or \(\dfrac{-7 + 3}{2} \leqslant x\) oe and \(x \lt \dfrac{5 + 3}{2}\)
or \((x =)\ -2\) and \((x =)\ 4\)
M1
Correct answer scores full marks (unless from obvious incorrect working) Answer: \(-2 \leqslant x \lt 4\)
A1
(3)
Notes
M1: or one side of the inequality correct, i.e. \(x \geqslant -2\) oe or \(x \lt 4\) Condone = rather than \(\leqslant\) or \(\lt \) or any other sign for the M marks.
M1ft: for drawing a line from −2 to 4 or (indep) for a closed circle or [ at −2 or (indep) for an open circle or ) or [ at 4 Only allow a follow through for a double ended inequality in (i)
A1ft: for correct diagram Only allow a follow through for a double ended inequality in (i)
