26 13 m2 5 P1 process to find (28 6 6) ÷ 2 (= 8) FE – – or (28 6 6 3 3) ÷ 2 (= 5) AB – – – – P1 process to find area of a triangle (= 16) or (= 9) or (= 10) or (= 3) P1 complete process for shaded area e.g. 8 × 4 + 2 × 3 + – (“16” “9”) or + A1 cao C1 (indep) for m2 27 = 3, = 3 M1 correct process to eliminate one variable (condone one arithmetic x y −2 error) M1 (dep) for substituting found value in one of the equations or appropriate method after starting again. A1 cao
26 13 m2 5 P1 process to find FE (28 – 6 – 6) ÷ 2 (= 8) or AB (28 – 6 – 6 – 3 – 3) ÷ 2 (= 5) P1 process to find area of a triangle (= 16) or (= 9) or (= 10) or (= 3) P1 complete process for shaded area e.g. 8 × 4 + 2 × 3 – (“16” + “9”) or + A1 cao C1 (indep) for m2 27 x = 3, y = −2 3 M1 correct process to eliminate one variable (condone one arithmetic error) M1 (dep) for substituting found value in one of the equations or appropriate method after starting again. A1 cao