Answer: Zeroes: 2.5 and 9.5 Vertex: (6, 12.25)
Step-by-step explanation:
:) Done on khan
Answer: If the initial term of an arithmetic sequence is a 1 and the common difference of successive members is d, then the nth term of the sequence is given by: a n = a 1 + (n - 1)d The sum of the first n terms S n of an arithmetic sequence is calculated by the following formula: S n = n (a 1 + a n)/2 = n [2a 1 + (n - 1)d]/2
Answer:
s
sStep-by-step explanation: