P3.3.2 - function ln x and its graph

The function ln x and its graph; ln x Solution of equations of the form eax + b = p and as the inverse function of ex. ln (ax + b) = q is expected.

Use function ln x and its graph to connect the rule to the data and decision in the question.

This matters because function ln x 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 function ln x and its graph to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: function ln x and its graph is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.