+0

# respresenting arithmetic sequences

+5
155
2
+961

An arithmetic sequence is given:

0.9, 1.4, 1.9, 2.4, . . . .

Identify the recursive formula for this sequence.

Dec 10, 2014

#2
+100800
+15

FIRSTLY - DO NOT GIVE NEGATIVE POINTS TO PEOPLE WHO ARE TRYING TO HELP YOU!

IF YOU THINK THAT THEIR ANSWER IS WRONG AND YOU WANT TO COMMENT THEN DO SO WITH A COMMENT POST.  THAT WAY THEY CAN LEARN TOO!

0.5 is being added each time.  So I think that the answer you are after is

$$X_0=0.9,\qquad X_n=X_{n-1}+0.5$$

.
Dec 10, 2014

#1
+10

I think it should be 0.4+(0.5*x) X represents the variable to fill in

Dec 10, 2014
#2
+100800
+15

FIRSTLY - DO NOT GIVE NEGATIVE POINTS TO PEOPLE WHO ARE TRYING TO HELP YOU!

IF YOU THINK THAT THEIR ANSWER IS WRONG AND YOU WANT TO COMMENT THEN DO SO WITH A COMMENT POST.  THAT WAY THEY CAN LEARN TOO!

0.5 is being added each time.  So I think that the answer you are after is

$$X_0=0.9,\qquad X_n=X_{n-1}+0.5$$

Melody Dec 10, 2014