SubArea: Rational functionsLevel: CProject ID: 2010017302Source Problem: 9000002908Accepted: 0Clonable: 1Easy: 1Find the interval where the function f(x)=−|2+1x| is a decreasing function. The function f is graphed in the picture.[−12;0)(−∞;0)[−12;∞)(−∞;−12)
