Question

Write explicit equation for the sequence

Answer 1

Step-by-step explanation:

r=14/7=28/14=56/28=2    

So it is geometric

By using this equation:  

a(n)=a1*(r)^(n-1)

and we have a(1)=7 , r=2

explicit equation : a(n)=7*(2)^(n-1)

hope this helps