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10 cards from this deck
Decreases
y=kxy = \frac{k}{x}y=xk
Constant of proportionality (or constant of variation)
Hyperbola
y=kxny = \frac{k}{x^n}y=xnk
Determines how quickly yyy decreases as xxx increases
Substitute known values of xxx and yyy, then solve for kkk
y=kxny = kx^ny=kxn
Intensity becomes one-quarter
Varies inversely with
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