and come from their dy/dx. * Cso **given answer** A1 Special case if the correct gradient is quoted could score M0A0M1A1 (4) – (b) Allow this to score here or in (c) B1 (1) (c) Attempt to obtain an equation in M1 one variable or x y Attempt to isolate or must x y – reach M1 or = f(p, or f(p) or f(q) x y q) One correct simplified coordinate A1 Both coordinates correct and A1 simplified (4) (9 marks) JUNE 2011 MARK SCHEME Question Scheme Notes Marks Number 1. (a) Either any one of f(1) = -1 or f(2) M1 = 8. Sign change (positive, negative) (and is Both values correct, sign change continuous) therefore (a root) is between A1 and conclusion and (2) (b) (or truncated to 2.6) B1 Attempt to find. M1 with or A1 or (3) or equivalent in words. 5 Question Scheme Notes Marks Number 2. (a) or awrt 2.24 B1 (1) (b) or or or M1 or or
and come from their dy/dx. * Cso **given answer** A1 Special case – if the correct gradient is quoted could score M0A0M1A1 (4) (b) Allow this to score here or in (c) B1 (1) (c) Attempt to obtain an equation in one variable x or y M1 Attempt to isolate x or y – must reach x or y = f(p, q) or f(p) or f(q) M1 One correct simplified coordinate A1 Both coordinates correct and simplified A1 (4) (9 marks) JUNE 2011 MARK SCHEME Question Number Scheme Notes Marks 1. (a) Either any one of f(1) = -1 or f(2) = 8. M1 Sign change (positive, negative) (and is continuous) therefore (a root) is between and Both values correct, sign change and conclusion A1 (2) (b) (or truncated to 2.6) B1 Attempt to find. M1 with or or or equivalent in words. A1 (3) 5 Question Number Scheme Notes Marks 2. (a) or awrt 2.24 B1 (1) (b) or or or or or M1
fp1_all-past-papers.docx