The coordinates of the vertices of triangle 1 are A(6,6), B(12,9), C(9,6), The coordinates of the vertices of triangle 2 are A' (2,2), B' (4,3), C (3,2),

What transformation was performed on triangle 1 to create triangle 22

Translation

Reflection across the x-axis

Reflection across the yaxis

Dilation

34

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional