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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 number line is called the x-axis. The equation of x-axis is y = 0. The y-coordinate or ordinate of every point on x-axis is equal to 0. The figure shows the coordinate plane formed by the intersection of the x- and y- axes. Their point of intersection is called the origin.