QS8—Elasticity calculations

Calculate elasticity and interpret the result.

Use qs8—elasticity calculations to connect the rule to the data and decision in the question.

This matters because qs8—elasticity calculations determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply qs8—elasticity calculations to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: QS8—Elasticity calculations is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.