Asked by Sara
                what is the domain of each of the following functions,their intercepts and thier range?
f(x)=x+3 and f(x)=-2x-3 if x<-2 and x>=-2
            
        f(x)=x+3 and f(x)=-2x-3 if x<-2 and x>=-2
Answers
                    Answered by
            Steve
            
    All polynomials have a domain of all reals numbers.
Just plug in x=0 to get the y-intercept, and f(x)=0 to get the x-intercept.
Since these are just lines, the range is also all real numbers.
Not sure what help the "if x<-2 and x>=-2" provides, since that pretty much includes all real numbers.
    
Just plug in x=0 to get the y-intercept, and f(x)=0 to get the x-intercept.
Since these are just lines, the range is also all real numbers.
Not sure what help the "if x<-2 and x>=-2" provides, since that pretty much includes all real numbers.
                    Answered by
            Anonymous
            
    1324413345
    
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