Question 17
17 T is inversely proportional to
T=15 when m=36
Find a formula for T in terms of m
Edexcel IGCSE Math A Higher 2.5.A direct and inverse proportion
Practise proportion questions by translating the wording into a formula, finding the constant and simplifying the final relationship.
How this is tested
- Write direct or inverse proportion formulae with k, powers and square roots.
- Find the constant of proportionality from given values before writing the formula.
- Simplify formulae involving inverse squares or square roots after substituting k.