Jayden needed to get his computer fixed. He took it to the repair store. The technician at the store worked on the computer for 3.75 hours and charged him $60 for parts. The total was $528.75. Write and solve an equation which can be used to determine x, the cost of the labor per hour.

When we do a translation, all the translated points must be translated in parallel (between them) lines. (this would mean that all our points suffer the same translation)

Here we can see that the lines BB´ and AA´ are parallel, but the line CC´ is not parallel to the other two. So the distance of the translation is constant, but the direction is not the same for all the points.

Then this is not a translation of all our triangle, because different points suffered different translation operations, this is what caused the triangles ABC and A´B´C´ to not be congruent.