'Start with a number, double it and then add one'. Use this rule to fill in the boxes below. (Marks available: 3) Answer Answer outline and marking scheme for question: 1 8, 11, 7 (Marks available: 3) Write down the nth term of each of the following sequences. a) 2 5 10 17 26 37 .... (2 marks) b) 4 16 36 64 100 144 .... (2 marks) (Marks available: 4) Answer Answer outline and marking scheme for question: 2 a) n2 + 1 b) 4n2 or (2n)2 (Marks Available: 4)