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YEAR 12 · LOGARITHMIC FUNCTIONS

Topic review.

Connect the key ideas, then choose a practice paper.

01 / QUICK RECAP

Connect the ideas.

  • A logarithm is an exponent; its input is positive, but its value may be negative.
  • Combine logs only with valid laws and retain original domain restrictions.
  • Use exact logarithmic answers before rounding a final numerical result.
  • Sketch from a domain, asymptote and exact anchor points.
  • Differentiate a logarithm of an input using the chain rule.
  • Interpret model parameters, units and limitations; log-scale changes describe ratios.
02 / PRACTICE TESTS

Put it together.

Choose a paper and show your working.

  1. Logarithmic functions — Practice test 1

    A balanced paper moving from inverse relationships to equations, graphs, derivatives and applications.

    10 questions · 50 marks · 70 minutes · Scientific calculator
  2. Logarithmic functions — Practice test 2

    Emphasis on domains, reflected graphs, exact solutions and logarithmic rates.

    10 questions · 54 marks · 70 minutes · Scientific calculator
  3. Logarithmic functions — Practice test 3

    A mixed paper connecting inverse functions, differentiation and supplied mathematical models.

    10 questions · 56 marks · 70 minutes · Scientific calculator
  4. Logarithmic functions — Practice test 4

    Reasoning about domains, parameters, inverse graphs and an optimisation model.

    10 questions · 54 marks · 70 minutes · Scientific calculator
  5. Logarithmic functions — Practice test 5

    Data interpretation, parameter fitting and checking claims about logarithmic models.

    10 questions · 57 marks · 70 minutes · Technology-assisted
  6. Logarithmic functions — Practice test 6

    A more demanding paper combining precise domains, parameter choices and mathematical reasoning.

    10 questions · 61 marks · 70 minutes · Technology-assisted
Curriculum reference & lesson scope

SACE Board of South Australia

Stage 2 Mathematical Methods: logarithmic functions and their applications; reciprocal-linear antiderivatives are taught in the Integration chapter.

Official curriculum source ↗

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