



 
Hi Gavin, Assume that you have already graphed $y = f(x)$ and you are now to graph $y = f(x) + 2.$ Look at a particular xvalue. The corresponding yvalue on the first graph is $f(x)$ and the yvalue on the second graph is 2 more, $f(x) + 2.$ Thus the point on the second graph is 2 units above the point on the first graph. This is true for every x in the domain of $f(x).$ Penny  


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