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 point on the parabola that intersects the axis of symmetry is called the  vertex , and is the point where the parabola is most sharply curved. The distance between the vertex and the focus, measured along the axis of symmetry, is the focal length. The latus rectum is the chord of the parabola which is parallel to the directrix and passes through the focus. Parabolas can open up, down, left, right, or in some other arbitrary direction.