C.3.4—Slope and intercept

Determine the slope and intercept of a linear graph and interpret their physical significance.

Use c.3.4—slope and intercept to connect the rule to the data and decision in the question.

This matters because c.3.4—slope and intercept determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply c.3.4—slope and intercept to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: C.3.4—Slope and intercept is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.