A is the point (–3, –2) B is the point (1, –2) C is a point on the line \(y = 4\)
(a) Draw triangle ABC on the centimetre grid below. [3 marks]
(b) Work out the area of triangle ABC. [2 marks]
Mark scheme (a)
Answer
Mark
Comments
Right-angled triangle ABC drawn with A at (–3, –2) and B at (1, –2) and C at (–3, 4) or (1, 4)
B3
B2 for A, B and C correctly plotted with no triangle drawn or A and B correctly plotted and a right-angled triangle drawn with A and B at two of the vertices or C plotted on the line \(y = 4\) and a right-angled triangle drawn with C at one of the vertices or A and B correctly plotted with C plotted at \((k, 4)\) with \(k \ne -3\) or 1 and triangle ABC drawn
B1 for A and B correctly plotted or C plotted on the line \(y = 4\) or a right-angled triangle drawn
Additional guidance
Condone incorrect or omitted labelling
Mark scheme (b)
Answer
Mark
Comments
Alternative method 1
\(\dfrac{1}{2} \times\) their base \(\times\) their height
