1) Find the value of the k that makes the sequence arithmetic
-13,k,-3,2,...
A)5
B)-8
C)-5
D)-10
2) Which formula describes the arithmetic sequence?
-4/5, -3/5,-2/5,-1/5...
A)tn=-n/5
B)tn=n/5-1
C)tn=1+n/5
D)tn=-n/5-1
3)What're the next 4 terms in the series?
t1=3,tn=1/2,tn-1 -1
A)1/2, -3/4, -11/8, -27/10
B)3/2, 3/4, 3/8, 3/16
C)-1/2, 3/4, 5/8, 21/16
D)2, 0, -1, -3/2
4)Which formula describes the arithmetic sequence?
-3,-6,3,-6
A)tn=-tn-1+3
B)tn=-tn-1-1
C)tn=tn-1-1
D)-tn-1-3