Level:
Project ID:
9000100707
Accepted:
1
Clonable:
0
Easy:
0
Consider points \(A = [-2;-1]\),
\(B = [1;y]\),
\(C = [3;-4]\). Find the coordinate
\(y\) which ensures
that the vectors \(\overrightarrow{AB } \)
and \(\overrightarrow{AC } \)
are perpendicular.
\(y = 4\)
\(y = -4\)
\(y = 0.8\)
\(y = -0.8\)