each of the points on the two graphs are of the form (n, tn), where tn is either a geometric or arithmetic sequence. identify the graph that presents a geometric sequence. justify your answers. then determine S8 of the geometric sequence
graph A points:
1,5
2,3
3,1
4,(-1)
5,(-3)
graph b points:
1,.5
2,1
3,2
4,4
5,8
3 answers