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Slope of a line = m slope of perpendicular line = -1/m
A 45-degree angle looks like half of a 90-degree angle. It looks exactly like one straight line with one horizontal line of the bottom, similar to half a square.
The slope of a line and the coordinates of a point on the line.The slope of a line and the coordinates of a point on the line.The slope of a line and the coordinates of a point on the line.The slope of a line and the coordinates of a point on the line.
Parallel lines have the same slope. The slope of the second line is also 13.