Write a function that describes a relationship between two quantities.
HSF.BF.A.1.A
Determine an explicit expression, a recursive process, or steps for calculation from a context.
HSF.BF.A.2
Write arithmetic and geometric sequences both recursively and with an explicit formula, use them to model situations, and translate between the two forms.
HSF.LE.A.1.B
Recognize situations in which one quantity changes at a constant rate per unit interval relative to another.
