Level:
Project ID:
9000123101
Source Problem:
Accepted:
1
Clonable:
1
Easy:
0
Find the values of the real parameter \(q\)
which ensure that the line \(y = q\)
is a tangent to the circle
\[
x^{2} + y^{2} + 4x - 8y + 4 = 0.
\]
\(\{0;8\}\)
\(\{ - 6;2\}\)
\(\{ - 8;0\}\)
\(\{ - 2;6\}\)