P2.5.1 - y = ax and its graph

y = ax and its graph. a > 0, a ≠ 1.

Use y = ax and its graph to connect the rule to the data and decision in the question.

This matters because y = ax and its graph determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply y = ax and its graph to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: y = ax and its graph is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.