Posted by **george** on Wednesday, October 18, 2006 at 2:27pm.

I am so bad when it comes to mathI I think I am slow! okay so my question is :

a recrusive sequence is defined by tn= 2tn-1, where t1= 5

define the first five terms of this sequnce:

so would I go like this to figure them out:

2tn-1, where t1= 5

so

2(5)(1-1)= 0

so the frist 5 are: 0, 10, 20, 30,40

am I correct or am I doing it horribley wrong?

okay there is a part b!

it says would the points of the sequence, (n,Tn), lie on the graph of an exponentail function, linear function or neithr?

I would have to say neither

am I wrong?

You have t

_{n} = 2t

_{n-1} - 1, where t

_{1}= 5

I think your second term is wrong.

t

_{2} = 2t

_{1} - 1 =2*5-1 = 9

t

_{3} = 2t

_{2} - 1 =2*9-1 = 17

t

_{4} = 2t

_{3} - 1 =2*17-1 = 33

You're not "horribly" wrong, but you probably just need to see how to get started.

The fist few points look like

n T

_{n}
1

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