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10 questions from this quiz
Opens downward (inverted U)
(0;c)(0; c)(0;c)
(−p;q)(-p; q)(−p;q)
y2−y1x2−x1\frac{y_2 - y_1}{x_2 - x_1}x2−x1y2−y1
1st and 3rd
x=−px = -px=−p
Increasing function
360°∣k∣\frac{360°}{|k|}∣k∣360°
cos(−θ)=cosθ\cos(-\theta) = \cos\thetacos(−θ)=cosθ
Shorter: 180°∣k∣\frac{180°}{|k|}∣k∣180°
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