Multiple Choice
Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.
-7th term is -2; 15th term is -18
A) a1 = 12, d = -2, an = an- 1 - 2
B) a1 = 12, d = 2, an = an- 1 + 2
C) a1 = 10, d = 2, an = an- 1 + 2
D) a1 = 10, d = -2, an = an- 1 - 2
Correct Answer:

Verified
Correct Answer:
Verified
Q84: Express the sum using summation notation.<br>-
Q85: Find the sum of the arithmetic sequence.<br>-{3n
Q88: An arithmetic sequence is given. Find the
Q90: Determine whether the given sequence is
Q91: Express the sum using summation notation.<br>-
Q92: A geometric sequence is given. Find
Q93: Find the indicated term of the sequence.<br>-The
Q94: Write out the first five terms of
Q126: Determine whether the sequence is arithmetic.<br>-2, -1,
Q191: Determine whether the sequence is arithmetic.<br>-2, -3,