Choosing a proportion model
Choosing a proportion model
Secondary 2
The sketches show three graphs, A, B and C. Graph B is a hyperbola that approaches both axes but never meets them.
A
B
C
- For each graph, state whether \(y\) is directly proportional to \(x\), inversely proportional to \(x\), or neither. Give a reason.
- For each proportional relationship, find the equation connecting \(x\) and \(y\).
Solution:
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Answer:(a) A: direct; B: inverse; C: neither
(b) A: \(y=4x\); B: \(y=\dfrac{18}{x}\)
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