SubArea: Analyzing function behaviorLevel: AProject ID: 2010013910Source Problem: 2010013909Accepted: 0Clonable: 1Easy: 0Suppose a function is increasing on the interval [−6;−3]. Which one of the offered functions has that property?i(x)=−x4+2x2−3h(x)=x2+x+1f(x)=1−x2xg(x)=(x+3)3−3x−6
