In this situation, what does a sequence represent? What does a series represent?
Remember that a sequence is a set of discrete numbers while a series is the sum of those numbers.
th graduation ceremony, how many total graduates should there be? Explain how you found your answer.
Use the summation formula
The total number of Gauss High graduates after years can be represented by the graph below. If the alumni relations committee wants to invite all graduates to a party to celebrate the th anniversary of the school, how may invitations will they need to send?
See part (b).