10, 8, 6, \cdots
Question
10,8,6,\cdots
Sequence
Determine whether the sequence is arithmetic
\text{Arithmetic sequence}
Evaluate
10,8,6,\cdots
Solution
\text{Arithmetic sequence}
Determine whether the sequence is geometric
\text{Not a geometric sequence}
Evaluate
10,8,6,\cdots
Solution
\text{Not a geometric sequence}
Find the common difference
d=-2
Evaluate
10,8,6,\cdots
Solution
d=-2
Write the next four terms
4,2,0,-2
Evaluate
10,8,6,\cdots
Solution
4,2,0,-2
Write an explicit formula
a_{n}=12-2n
Evaluate
10,8,6,\cdots
Solution
a_{n}=12-2n
Choose Method
Determine whether the sequence is arithmetic
Determine whether the sequence is geometric
Find the common difference
Write the next four terms
Write an explicit formula