The non-constant term in the linear function y = αx indicates that the line passes from the beginning of the axes.
The existence of the fixed term in the linear function y = αx + β indicates that the line intersects the vertical axis.
≤ α <0 and β <0 in the linear function y = αx + β indicates that the line crosses the vertical negative half-axle and forms an angle with the horizontal axis greater than 90 degrees.
a> 0 and β <0 on the linear function y = αx + β indicates that the line crosses the vertical negative half-axis and forms an angle with the horizontal axis less than 90 degrees.
α <0 and β> 0 in the linear function y = αx + β indicates that the line crosses the vertical positive half-axle and forms an angle with the horizontal axis greater than 90 degrees.
a> 0 and β> 0 in the linear function y = αx + β indicates that the line crosses the vertical positive half-axle and forms an angle with the horizontal axis less than 90 degrees.
The existence of the fixed term in the linear function y = αx + β indicates that the line intersects the vertical axis.
≤ α <0 and β <0 in the linear function y = αx + β indicates that the line crosses the vertical negative half-axle and forms an angle with the horizontal axis greater than 90 degrees.
a> 0 and β <0 on the linear function y = αx + β indicates that the line crosses the vertical negative half-axis and forms an angle with the horizontal axis less than 90 degrees.
α <0 and β> 0 in the linear function y = αx + β indicates that the line crosses the vertical positive half-axle and forms an angle with the horizontal axis greater than 90 degrees.
a> 0 and β> 0 in the linear function y = αx + β indicates that the line crosses the vertical positive half-axle and forms an angle with the horizontal axis less than 90 degrees.
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