1.3.2.3b - Demand and supply diagrams

Draw and interpret demand and supply diagrams to show causes and consequences of shifts.

Use b - demand and supply diagrams to connect the rule to the data and decision in the question.

This matters because b - demand and supply diagrams determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply b - demand and supply diagrams to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: b - Demand and supply diagrams is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.