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Report Abuse. the point where the graph crosses the y-axis is the y-intercept, and the x-coordinate of this is 0 since it is crossing the y-axis (any point on the y-axis has an x-coordinate of 0). bialy Â· 7 years ago. Thumbs up.
In classical Cartesian algebra, the x axis is defined as a horizontal number line defining the distance from a zero point called the origin. The y axis is a vertical line de â¦ fining the vertical distance from the same origin. This system has been adapted to define axes on any number of graphing systems, from Microsoft Excel to modern machine tools.