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13 cards from this deck
Where function changes from increasing to decreasing or vice versa
Zero (horizontal)
dydx=0\frac{dy}{dx} = 0dxdy=0
Find the first derivative dydx\frac{dy}{dx}dxdy
Higher y-value is max, lower y-value is min
d2ydx2<0\frac{d^2y}{dx^2} < 0dx2d2y<0 (negative)
d2ydx2>0\frac{d^2y}{dx^2} > 0dx2d2y>0 (positive)
Frowning ∩ (negative second derivative)
Minimum
Maximum
dydx>0\frac{dy}{dx} > 0dxdy>0
dydx<0\frac{dy}{dx} < 0dxdy<0
Exactly one
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