9000106207

SubArea: 
Plane geometry
Level: 
A
Project ID: 
9000106207
Accepted: 
1
Clonable: 
0
Easy: 
1
In the following list identify a normal vector to the line \(p\). \[ p\colon - x + 2y + 3 = 0 \]
\((1;-2)\)
\((2;3)\)
\((-1;3)\)
\((2;-1)\)