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16. If f(x) = |x-1| + |x-3| + |5-x|, for every x belongs to R Q1. f(x) is increases, then x belongs to Q2. f(x) is decreases , then x belongs to Q3. f(x) is symmetrical about the line x=k, then the value of k is Q4. The set of values of a such equation f(x)-a=0 has two solutions Q5. The set of values of a such that equation |f(x)|-a=0 has no solution |
| Answer» 16. If f(x) = |x-1| + |x-3| + |5-x|, for every x belongs to R Q1. f(x) is increases, then x belongs to Q2. f(x) is decreases , then x belongs to Q3. f(x) is symmetrical about the line x=k, then the value of k is Q4. The set of values of a such equation f(x)-a=0 has two solutions Q5. The set of values of a such that equation |f(x)|-a=0 has no solution | |