Level:
Project ID:
1103163605
Accepted:
1
Clonable:
0
Easy:
1
The graph of \( f' \) is given in the figure. Find the interval where \( f \) is a decreasing function. (The function \( f' \) is the derivative of the function \( f \).)
\( (2;4) \)
\( (-1;1) \)
\( (1;3) \)
\( (-4;-2) \)