.b) Lấy được ít nhất một quả cầu trắng
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The slope within two sets of points is calculated using the slope equation
The slope of a line or points is the rate of change of the line.
This in other words means that, the vertical change per unit horizontal change
Assume that the points are given as:
(x1, y1) and (x2, y2)
The slope (m) of the points is:
Hence, the equation of two sets of points is
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