SubArea: Quadratic functionsLevel: CProject ID: 2010012204Source Problem: 1003162303Accepted: 0Clonable: 1Easy: 0Find all the values of the real parameter m such that f(x)=−2(x−m)2−5 is decreasing on (0;∞).m∈(−∞;0]m∈[0;∞)m∈(−∞;−5]m∈(−∞;5]
