Answer:
x= 88
Step-by-step explanation:
Password to what exactly?
4,6,7,11,15,16 this would be the answer!
If you follow is rule : P(x,y)>180° rotation>P'(-x,-y). the negative signs doesn't mean to make it negative but to change it to the opposite sign. If it's positive it goes to negative. And if it's negative is goes to positive. The rotated image would have the points: (1,2) (4,4) (3,7)