Direct-inverse combined formula
Direct-inverse combined formula
Secondary 2
4 marks
TGM Original Questions
Optional extension
The quantity \(y\) varies directly with \(T\) and inversely with \(x^2\). Given \(y=5\) when \(T=4,x=2\):
- express \(y\) in terms of \(T,x\)[2]
- find \(y\) when \(T=6,x=5\).[2]
Solution:
Solution locked
680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs a course plan.
Create a free account to practise similar questions.
Answer:(a) \(y=\dfrac{5T}{x^2}\) (b) \(y=1.2\).
Need help? Join our E-Maths tuition for O-Level success.
Learn more