or yellow = 2, blue = 4, or states 2:1:8 oe in any order (can be algebraic) for complete process to find possible number of each colour or equivalent ratio, eg 8G P1 2B 1Y or G:B:Y = 8:2:1 oe or yellow = 2, blue = 4, green = 16 oe (can be algebraic) A1 oe 20 (a) 1) 1) B1 Shape labelled A (−2, (−4, 2) (−2, 2) (−5, (b) B1 Shape labelled B (1, −4) (3, −4) (1, −5) (4, −5) Paper: 1MA1/2F Question Working Answer Mark Notes 21 (a) 6 B1 cao (b) 5 B1 cao (c) Shown M1 for writing 100a or 1000b as a power of 10 (=102a or 103b) or 102a 3b + or 100 = 10² and 1000 = 10³
or yellow = 2, blue = 4, or states 2:1:8 oe in any order (can be algebraic) P1 for complete process to find possible number of each colour or equivalent ratio, eg 8G 2B 1Y or G:B:Y = 8:2:1 oe or yellow = 2, blue = 4, green = 16 oe (can be algebraic) A1 oe 20 (a) (−2, 1) (−4, 1) (−2, 2) (−5, 2) B1 Shape labelled A (b) (1, −4) (3, −4) (1, −5) (4, −5) B1 Shape labelled B Paper: 1MA1/2F Question Working Answer Mark Notes 21 (a) 6 B1 cao (b) 5 B1 cao (c) Shown M1 for writing 100a or 1000b as a power of 10 (=102a or 103b) or 102a + 3b or 100 = 10² and 1000 = 10³
04b_1ma1_2f_-_november_2017_mark_scheme.docx