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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.
Hi James, y = 3x - 5x 2 = x(3 - 5x) crosses the x-axis at x = 0 and x = 5/3 so find the area of the region bounded by y = 3x - 5x 2 and the x-axis by integrating 3x - 5x 2 from x = 0 to x = 5/3. Call the value A. Suppose the line through the prigin y = mx intersects the parabola at Q with x-coordinate p.