22 Result shown 4 M1 for 40 × 0.5 (= 20) or axis scaled correctly x M1 for total distance of 80 miles or axis scaled correctly y A1 for 1.25 hours oe or a completed travel graph C1 for correct conclusion with either 16 45 or a correct graph 23 0.455 < 2 B1 for 0.455 or 0.465 y ≤ 0.465 B1 cao 24 23 × 32 × 5 3 M1 for a correct start to a factor tree (2 correct branches) M1 for a fully correct tree or correct factors as a list A1 for 23 × 32 × 5 oe
22 Result shown 4 M1 for 40 × 0.5 (= 20) or x axis scaled correctly M1 for total distance of 80 miles or y axis scaled correctly A1 for 1.25 hours oe or a completed travel graph C1 for correct conclusion with either 16 45 or a correct graph 23 0.455 ≤ y < 0.465 2 B1 for 0.455 or 0.465 B1 cao 24 23 × 32 × 5 3 M1 for a correct start to a factor tree (2 correct branches) M1 for a fully correct tree or correct factors as a list A1 for 23 × 32 × 5 oe
17736_02b-Mock-papers-set-1-Paper-1F-mark-scheme.docx