29 = 3x 1 M1 for = 3x + or a line drawn with gradient 3 passing through y y c A – A1 oe 30 (a) (x +13)(x 13) B1 cao – (b) 6x2 + 2 M1 for all 4 terms (and no additional terms) correct with or without signs or 3 out of x – no more than 4 terms correct with signs A1 6x2 + 2 x –
29 y = 3x – 1 M1 for y = 3x + c or a line drawn with gradient 3 passing through A A1 oe 30 (a) (x +13)(x – 13) B1 cao (b) 6x2 + x – 2 M1 for all 4 terms (and no additional terms) correct with or without signs or 3 out of no more than 4 terms correct with signs A1 6x2 + x – 2
gcse_1ma1_mark_scheme_2f__mock_set_2_.docx