Level:
Project ID:
9000070404
Accepted:
1
Clonable:
0
Easy:
1
Given function \(f(x)= -x^{2} + 4x + 12\), find
the intervals where \(f\)
is a decreasing function.
\(\left (2;\infty \right )\)
\(\left (1;\infty \right )\)
\(\left (-4;\infty \right )\)
\(\left (-6;\infty \right )\)