Question

Answ

Write an equation to describe the sequence below. Use n to represent the position of a term
in the sequence, where n = 1 for the first term.
4, 8, 16, ..

Answer 1

`4(2)^(n-1)`

Explanation:

this is a geometric sequence and to get each next number you multiply by two so
`a(b)^(n-1)` becomes put 2 in for b and you get
`a(2)^(n-1)`.You can put 4 in for a because its the first number of the sequence.
`4(2)^(n-1)`