Question

Which of these would be a good candidate for a one-variable data table and payment function?

Answer 1

The correct option is this: CHECKING SCENARIOS WITH VARIABLE DOWN PAYMENT.
A data table is a range of cells, which shows how changing one or two variables in one's formula can affect the value of that formula.
In excel, instead of creating several scenarios, one can create a data table with which one can quickly try out different values for formula.