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10 cards from this deck
y2−y1x2−x1\frac{y_2 - y_1}{x_2 - x_1}x2−x1y2−y1
y2−y1y_2 - y_1y2−y1 (vertical change)
x2−x1x_2 - x_1x2−x1 (horizontal change)
y=a+bxy = a + bxy=a+bx
y-intercept
slope
constant term (aaa)
coefficient of xxx (bbb)
Line decreasing (downward from left to right)
Two points
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