PRECALCULUS 12 GRADE

Question

GIVEN THE GEOMETRIC SEQUENCE WHERE a2=4, r=3. WRITE AN EXPONENTIAL FUNCTION THAT WILL CONTAIN THE DOMAIN OF THE SEQUENCE : f(n)=

Answer 1

If you want a recursive definition

a_n = 3a_n-1

If you want an explicit definiition

a_n = (4/3)(3)^n-1