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10 questions from this quiz
∝\propto∝
y∝xy \propto xy∝x
y=kxy = kxy=kx
Straight line through origin
y∝1xy \propto \frac{1}{x}y∝x1
y=kxy = \frac{k}{x}y=xk
Curved line (reciprocal graph)
Both in the same direction
It never touches either axis
Direct proportional relationships
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