Question

The function y=2* represents the number of

regions formed when you fold a tablecloth x times.
How many folds do you need to make 128 regions?

Answer 1

7 folds

Explanation:

n folds will give 2ⁿ regions

⇒ 2ⁿ = 128

Taking log on both sides,

log(2ⁿ) = log(128)

⇒ n log(2) = log(128)

⇒ n =
`(log(128))/(log(2))`

⇒ n = 7