24 = k(4)2 or or 1.5 M1dep oe × 16 M1dep oe 900 A1 A1 (R =) 30 or 30 Either value – Alternative method 2 4² M1 R² 4² oe R² 24 4² 1350 = R² oe = M1dep 24 4² 1350 R² × 16 M1dep oe A1 900 A1 (R =) 30 or 30 Either value – Q Additional Guidance Mark M1 20 = y kx2 M1 αkR2 y 900 scores 4
24 = k(4)2 or or 1.5 M1dep oe × 16 M1dep oe 900 A1 (R =) 30 or – 30 A1 Either value Alternative method 2 R² 4² M1 oe 4² R² 1350 = R² 24 4² M1dep oe 24 = 4² 1350 R² × 16 M1dep oe 900 A1 (R =) 30 or – 30 A1 Either value Q Additional Guidance Mark 20 y = kx2 y αkR2 900 scores 4 M1 M1
November-2014-Paper-2-Mark-Scheme1.docx