Level:
Project ID:
1103109001
Accepted:
1
Clonable:
0
Easy:
0
Let \( A \) be the point \( [4;3] \) and let the line \( p \) has the equation \( x-y+3=0 \). Find the coordinates of the point \( A' \) which is a mirror reflection of \( A \) about the line of symmetry \( p \) (see the picture).
\( A'=[0;7] \)
\( A'=[1;8] \)
\( A'=[-1;8] \)
\( A'=[-1;7] \)