Arithmetic Sequences
Is this an arithmetic sequence or a geometric sequence? -10, -5, 0, 5, 10,...
Arithmetic
Is this geometric or arithmetic sequence? 100, 50, 0, -50, -100, -150
Arithmetic
What is the first term in this sequence 2, _, 18,26
10
What is the first term of this sequence? ____, 10, 14, 18, 22,...
6
Find the common difference of the following sequence. -5, -4.5, -4, -3.5,... Identify whether or not it is a geometric or arithmetic sequence.
+0.5/ arithmetic
Find the common ratio of the following sequence. -6, 6, -6, 6, -6, 6, -6, 6...
-1
What is the 3rd term of this sequence 3, 9, _, 81
27
What is the ninth term of the sequence? -2, -10, -50, -250,...
-781250
Find the 9th term of the sequence -16, -13, -10, -7, -4...
the 9th term is 8
Find the 8th term of the following sequence -1, 2, -4,...
128
What is a explicit formula.
A formula used to find a specific term.
Find the 99th term of the sequence 1,-1,1,-1,1..
1
Find the terms in the sequence 21, ___, ___, ___, 45,......and identify whether it is arithmetic or geometric.
27, 33, 39. Arithmetic.
Find the missing terms in geometric sequence 12, _____, ______, -1.5
-6, 3,
What does r stand for in geometric sequences?
common difference.
a(n) = 20 * (-3)^(n-1) What is a(8) ?
-43740
Joe scored 123 in the first bowling game. He scored 131 points in his second game. He scored 139 points in his third game. Write an explicit formula to represent the nth term of this sequence.
What is b(n) = 123+8(n-1)
Mr. Choi works at Chadwick International. On his first year, his salary was $40000. Every year, the salary increases by 5%. Write an explicit formula to represent this sequence.
s(n) = 40000 * 1.05^(n-1)
what is the basic arithmetic explicit formula.
a(n)= a(1) + d(n-1)
What is a recursive formula.
Formulas that use the previous term of the sequence to define the next term of the sequence.