Content atlas · Common Core State Standards for Mathematics 2010

Write arithmetic and geometric sequences both recursively and with an explicit formula, use them to model situations, and translate between the two forms.★

CCSS.MATH.CONTENT.HSF-BF.A.2

3 published problems

1. Rook’s Halfway Signal — Tune an observatory signal by following a rule that creates each new reading from the one before it, then find a shortcut to a faraway step.
2. The Safe Zone — Test whether one interval can trap every future value of a recurrence, then find a smaller interval that almost works but fails at an endpoint.
3. The Ouroboros Binding — At an orchard ruin in Avelwythe, an ouroboros binding sends a never-ending menagerie through the lake mist. Determine whether its exact instruction point can ever repeat.