Question

Which explains why the sequence 64, 4, 1.4, ... is arithmetic or geometric?

Is it geometric or artihmetic? decreases by which factor? 1/16 or 4?

I think geometric and decreaes by 4. Help please? @bibby

Answer 1

@Tazmaniadevil

Answer 2

@whpalmer4

Answer 3

The y intercept is 8 so mark that point on the y axis. The slope is negative 1 over 4. That means the rise is -1 and the run is positive 4. From the y intercept of 8, follow the direction given by the slope and go down one unit and right 4 units. Mark that point on the graph. Since two points determine a line, draw the line through the two points and put arrows on the ends because a line goes on and on forever in both directions

Answer 4

oh thank you!! Ok, I will read what you wrote. Just sec

Answer 5

Ok so I think I got it right? The sequence is geometric because it decreases by a factor of 4. ?

Answer 6

@josgilbertsen

Answer 7

well the sequence given isn't geometric or arithmetic...

can you please check its not

64, 4, 1/4, .....

if it is, then its geometric with a common ratio of 1/16... as you said...

Answer 8

It is asking if it is geometric or arithmetic in sequence.

Answer 9

dang i got it wrong. Ok i think I understand it.

Answer 10

look at it this way

64 x 1/16 = 4

4 x 1/16 = 1/4

in geometric sequences... you are multiplying... the previous term...

Answer 11

ok I am writing that down in my notes. Thank you. Can I ask you another question? It is about variables.

Answer 12

well if you post it in the normal way I'll look at it

Answer 13

yes I will definetly!

Answer 14

geometric because it decreases by a factor of 1/16