5.( 1) The graph is symmetrical about the Y axis, that is to say, the Y coordinate of the image point remains unchanged, and the X coordinate becomes the original opposite symbol.

So A 1=(3,-1); B 1=(4，-4)； C 1=( 1，-2)

(2) the image is correct. As for coordinate transformation, you can look at the picture or calculate it. The four units of translation to the right are the X coordinate plus 4, and the Y coordinate plus 5, so C2 is (-1+4,-2+5) = (3,3).

(3)D=(-2，-5)

That's the end of my answer, thank you.

I hope my answer is helpful to you.