SOLUTION: Choose the recursive formula for the sequence 7, –1, –9, –17, ... Then choose the next term. a. an= an - 1 – 7, where a1= 7; –24 b. an= an - 1 – 8, where a1= 7; –25 c. an=

Algebra ->  Sequences-and-series -> SOLUTION: Choose the recursive formula for the sequence 7, –1, –9, –17, ... Then choose the next term. a. an= an - 1 – 7, where a1= 7; –24 b. an= an - 1 – 8, where a1= 7; –25 c. an=       Log On


   

Question 282813: Choose the recursive formula for the sequence 7, –1, –9, –17, ... Then choose the next term.
a. an= an - 1 – 7, where a1= 7; –24
b. an= an - 1 – 8, where a1= 7; –25
c. an= an - 1 – 7, where a1= –17; –25
d. an= an - 1 + 8, where a1= 7; –25
(n, n-1, and 1 are below the a but not sure how to write that here. I posted a pic here: http://i39.tinypic.com/33c0ocl.jpg)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Choose the recursive formula for the sequence 7, –1, –9, –17, ... Then choose the next term.
a. an= an - 1 – 7, where a1= 7; –24
b. an= an - 1 – 8, where a1= 7; –25
c. an= an - 1 – 7, where a1= –17; –25
d. an= an - 1 + 8, where a1= 7; –25
----------------------------------------
a.
a1 = 7
a2 = 0
a3 = -7 That doesn't fit.
---------------------------
c.
a1 = -17
a2 = -24
a3 = -31 That doesn't match
----------------------------
d.
a1 = 7
a2 = 15
a3 = 22 No match
-----------------------
b.
a1 = 7
a2 = -1
a3 = -9
a4 = -17
a5 = -25 I'd go with b.