As a business analyst reviewing a coordinate graph of projected revenue and operational costs over time, you notice both trends are represented by slanted lines. What specific mathematical characteristics must you confirm from the graph to verify that these two slanted lines are parallel?

A building inspector is reviewing a coordinate blueprint to ensure two slanted support beams are parallel. To verify this from the graph, the inspector must confirm that the lines representing the beams have the identical slope but different $y$-intercepts.

A technician is verifying that two slanted cables shown on a coordinate grid are parallel. Match each graphical property or tool with the specific condition or function required to verify this relationship.

Verifying Parallelism on a Blueprint

A structural engineer is reviewing a coordinate blueprint to verify that two slanted support beams are parallel. Arrange the following steps in the correct order to perform this verification using only the graphical information provided on the blueprint's grid.