A) Arithmetic, common difference is −4. 2. 28,24,20,16 24-28= -4 20-24= -4 16-20= -4 Common Difference- -4 And is an Arithmetic Sequence B) Geometric, common ratio is 0.5 4. 48,24,12,6 24/48=0.5 12/24=0.5 6/12=0.5
C) Arithmetic, common difference is 2. 1. 2,4,6,8... 4-2=2 6-4=2 8-6=2 The pattern Continues, consecutive term differs by 2.. And is Arithmetic.
D) Geometric, common ratio is 2. 3. 2,4,8,16 4/2= 2 8/4= 2 16/8= 2