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10 questions from this quiz
They change in the same direction
A straight line through the origin
The rate at which quantities change
y=kxy = kxy=kx
k=yxk = \frac{y}{x}k=xy
k=5k = 5k=5
C=840C = 840C=840
Wages also double
When one quantity is zero, the other is zero
Write an equation relating the variables
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