Question

4. Using the given formula below, identify the common ratio:

f(x) = 4 (2.5)"
How do i find the common ratio?

Answer 1

2.5

Explanation:

Recall that the formula for a geometric sequence is
`a_n=a_1(r)^(n-1)` where
`a_1` is the first term and
`r` is the common ratio.

Thus, the common ratio is
`r=2.5` since each consecutive term is being multiplied by 2.5 when
`n` is an integer. This tells us that the growth rate of the exponential function is 150% since 100%+150%=250%

Answer 2

The Common ratio should be 2.5

Explanation:

as the formula goes, the first number in a sequence is multiplied by the common ratio, the amount of number space in between two numbers in a sequence, in this case 2.5 in order to get the next number. Hope this helps!