1003206001

SubArea: 
Quadratic functions
Level: 
A
Project ID: 
1003206001
Accepted: 
1
Clonable: 
0
Easy: 
0
We are given three quadratic functions: \[ \begin{aligned} f_1(x)&=-x^2-2, \\ f_2(x)&=-x^2-2x-4, \\ f_3(x)&=x^2+2. \end{aligned} \] Which of the given functions are increasing on the interval \( (-2;0) \)?
only \( f_1 \)
only \( f_2 \)
\( f_1 \) and \( f_2 \)
all three given functions
Fixed Answer: 
Last Fixed