Question

△efg is a translation of △efg. write the translation rule. (x,y)→(x+□,y+□)

Explanation:

Step1: Determine x - translation

Count the horizontal movement of a point. For example, point E(1, - 3) moves to E'(-9, 9). The change in x - coordinate is -9 - 1=-10. So the x - part of the translation rule is x→x - 10.

Step2: Determine y - translation

Count the vertical movement of the point. Using point E again, the change in y - coordinate is 9-( - 3)=12. So the y - part of the translation rule is y→y + 12.

Answer:

$(x,y)\to(x - 10,y + 12)$