# SOLUTION: 2) By looking at the equation for a rational function, how can you tell if there will be "y-values" which will never occur? How might this be represented on the graph?

Algebra ->  -> SOLUTION: 2) By looking at the equation for a rational function, how can you tell if there will be "y-values" which will never occur? How might this be represented on the graph?       Log On

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 Click here to see ALL problems on Graphs Question 91176: 2) By looking at the equation for a rational function, how can you tell if there will be "y-values" which will never occur? How might this be represented on the graph? Answer by stanbon(60771)   (Show Source): You can put this solution on YOUR website!The denominator of the rational function cannot have a value of zero. If there are radicals in the denominator the radicand must not be negative. ---------------- Cheers, Stan H.