Please help me! I just need them matched but I don’t know how :(

2)Transitivity

3)Symmetric

4)Symmetric

5)Transitivity

6)Verticle angles

7)Def of congruent angles

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: