## Numbers Group Title complete the pattern 1/8 1/2 2 8 32 128? 2 years ago 2 years ago

1. cathyangs

huh? what are the separate terms?

2. Numbers

After 8

3. cathyangs

ah... it's multiplying by 4 each time. 128*4, type it into your search bar.

4. Numbers

Ok Ty, so 8x4 and 128x4

5. Walleye

When you get patterns like this you may find it helpful to iqnore the fractions first.

6. moneybird

multiply four each time

7. cathyangs

I find it helpful, especially when trying to write a function, to figure out what the 0th term would be. Like in this case, the function of n, the number of term, is: f(n)=1/32*4^n

8. moneybird

this is a goemetric sequence $\frac{1}{8} (4)^{n-1}$

9. moneybird

4 is the common ratio and 1/8 is the first term and n is the number of term