2. Shape (3) 3.1 Substitute Q(2; 10) into substitute Q into h finding derivative equating derivative to 0 solving simultaneously for and a b (5) 3.2 = –3,5 Average gradient formula substitution answer (4)
2. Shape (3) 3.1 Substitute Q(2; 10) into substitute Q into h finding derivative equating derivative to 0 solving simultaneously for a and b (5) 3.2 Average gradient = –3,5 formula substitution answer (4)