Connect the ideas
Choose an index law from the operation; do not apply product laws to sums.
Fractional powers connect with roots. Keep even-root domains and log inputs valid.
Simplify surds exactly and rationalise using equivalent fractions.
Exponential change multiplies by a fixed factor over equal input intervals.
Logarithms invert powers; logarithmic scale differences describe ratios.
Use graphs, tables and context to choose and check a model; round at the end.
Practice tests
Complete each paper and show your working.
Exponential relationships — practice test 1
16 questions · 42 marks · 60 minutes · Scientific calculator
Exponential relationships — practice test 2
16 questions · 47 marks · 60 minutes · Scientific calculator
Exponential relationships — applications test
16 questions · 53 marks · 60 minutes · Scientific calculator
