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1) Segment form of the equation of a line (hereinafter referred to as the UTRP) 2) What are the numbers m, n (in school: p, q)? 3) What are the segments (in the picture)? 4) How to read the UTRP from the picture and create a picture based on the UTRP? 5) Why do lines parallel to the coordinate axes not have the UTRP? 6) Why don't lines passing through the origin not have the UTRP? 6) How to convert ORP to UTRP? Example 1: basic type Example 2: using a compound fraction Example 3: pay attention to the minus before the second term Example 4: a line passing through the origin (not possible) Example 5: a line parallel to the x-axis (not possible)