Asked by Jame
                how would you determine the domain and range of y=2(x+1)^2-3 without graphing
            
            
        Answers
                    Answered by
            drwls
            
    x (the domain) can be any number
y (the range) cannot be less than -3, since 2(x+1)^2 is either 0 or positive
The upper range limit is infinity
    
y (the range) cannot be less than -3, since 2(x+1)^2 is either 0 or positive
The upper range limit is infinity
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