See the explanation below.
Work Step by Step
Sequence is defined as an array of numbers which are placed or arranged in a way such that there will be one starting number and one ending number and the formula for the general terms such as $n$ terms can be replaced by variable numbers. It is a function whose domain correspond to the set of positive integers and the graph will respond to discrete co-ordinates. The graph will be in between $n$ terms and $a_n$(n-th terms with points $(n,a_n)$.