Asequence has a ratio of 4. when n = 1, the value of the function is 16. which function models the sequence?

a: f(n)=4x4n

b: f(n)=4n+2

c: f(n)=fn+8

d: f(n)=2x4n

A.

Step-by-step explanation:

The geometric sequence has the form:

where r=4 is the common ratio and is the first term.

When we plug in these values we obtain:

We can use properties of exponents to simplify further to get:

This gives us:

The correct answer is A.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

hello! just here for points! though i wish i knew!