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 Question from Gavin, a student: how would you plot y=f(x)+2

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 x-value. The corresponding y-value on the first graph is $f(x)$ and the y-value 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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