TL;DR

  • The most important skill in the investigation is finding the general term so give it LOTS of practice here.

It is absolutely essential that you can find the general term of any linear, quadratic or geometric sequence efficiently and correctly.

Without this skill, you will lose out on a lot of marks in the investigation that you could easily get.

From the previous sections you should know the rules.

Use the activity below to practice finding the general rule.

Either select on type to practice that type, or select them all to help practice deciding which type it is.

Find the \(n^{th}\) Term

Find the formula for the \(n^{th}\) term of the sequence: