Question

MEDAL!!!


Create the first five terms of a geometric sequence where:
the 6th term is 64

Answer 1

@rebeccaxhawaii

Answer 2

Okay so we are making one up?

Answer 3

I think so

Answer 4

Oki so a_6=64

Answer 5

How would I figure out what a is a_1 is ?

Answer 6

Hmm. Let's experiment. I've never done a problem like this.

Answer 7

plug in 64 for a_n and n=6

Answer 8

pick something for r like 2

Answer 9

so for r we could just guess and check right?

Answer 10

r can be whatever you want

Answer 11

Since we are creating it. We are just gonna make it up.

Answer 12

So plug everything in r=2

Answer 13

so it would be 2, 4, 8, 16, 32

Answer 14

Thanks for the help :)

Answer 15

You got it!