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Answer:{-4,1,7.15}Step-by-step explanation:The range of a function is the set of all output values .In the given diagram , it can be seen that all the values in domain {-1,4,8,18}(from where the arrow start) is mapping to all the values of the codomain {-4,1,7,15} ( where the arrow ends).Thus, here Range = Codomain ={-4,1,7,15}Hence, the range of this function : {-4,1,7,15}...