B.3.2—Plotting two variables

Plot two variables from experimental or other data, including concentration–time graphs with an appropriate best-fit curve.

Use b.3.2—plotting two variables to connect the rule to the data and decision in the question.

This matters because b.3.2—plotting two variables determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply b.3.2—plotting two variables to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: B.3.2—Plotting two variables is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.