Question

Write the geometric sequence in function notation. 7, 14, 28, 56, 112,

Answer 1

Explanation:

The first term of the given geometric sequence, 7, 14, 28, 56, 112, ...

common ratio 14/7=2

formula is a(n) = First number*common ratio^(n-1)

so here,

first number of the series is 7

common ratio is 2

and n is the specific number

Each new term is twice the previous term. a(n) = 7*2^(n - 1).