Question

A sequence is defined by the recursive formula f(n + 1) = 1.5f(n). Which sequence could be generated using the formula?

Answer 1

choices:

–12, –18, –27, ...
–20, 30, –45, ...
–18, –16.5, –15, ...
–16, –17.5, –19, ...

think about what f(n + 1) = 1.5f(n) means. start with any term f(n) in the sequence, multiply it by 1.5, to get the next term f(n+1)

therefore, look for the choice where each term is multiplied by 1.5 to generate the next term