Question

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

Explanation:

Step1: Find the horizontal translation

Let's take point B(7,9) and its image B'(- 1,0). The change in the x - coordinate is $\Delta x=-1 - 7=-8$.

Step2: Find the vertical translation

The change in the y - coordinate for point B is $\Delta y=0 - 9=-9$.

Answer:

$(x,y)\to(x - 8,y - 9)$