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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.
The horizontal line is known as X-axis and the vertical line is known as Y-axis. The coordinate point (x, y) on the Cartesian plane says that the horizontal distance of the point from the origin is x, and the vertical distance is y. If the sign of x is positive the point is on the right of the origin, else it is on the left.