Home. Certified Services Inc. is a collection agency offering a full array of accounts receivable solutions. Since Certified Services Inc. was founded in 1960, we have been providing excellent customer service and superior collection results for our customers.ome. Certified Services Inc. is a collection agency offering a full array of accounts receivable solutions. Since Certified Services Inc. was founded in 1960, we have been providing excellent customer service and superior collection results for our customers.
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 y-axis on the wall is vertical but the one on the table is horizontal. In the 2-dimension case, as mentioned already, the usual designation of the vertical coincides with the y-axis in co-ordinate geometry.