2000004311

SubArea: 
Quadratic functions
Level: 
C
Project ID: 
2000004311
Accepted: 
0
Clonable: 
0
Easy: 
1
The function f is graphed in the picture. Which of the following is its equation?
f(x)=|x2−1|−1
f(x)=|x2+1|−1
f(x)=|x2+1|+1
f(x)=|x2−1|+1