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

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

Question

***WILL MEDAL***
A sequence is defined by the recursive formula f(n + 1) = 1.5f(n). Which sequence could be generated using the formula?

–12, –18, –27, ...
–20, 30, –45, ...
–18, –16.5, –15, ...
–16, –17.5, –19, ...

anonymous · Answer

B

mathmate · Answer

Hint:
put n=-12 into the equation and calculate f(n+1) using
f(n+1)=1.5 f(n), and see if it matches the next term.
If it does, check the third term in the same way.