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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.
Below is the P-F curve most people are familiar with. The x-axis of the curve represents Time (T) or Operating Age, and the y-axis represents resistance to failure. Starting at the top left part of the curve and moving right we encounter point P, known as Potential Failure.