Math CentralQuandaries & Queries


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 $f(x).$


About Math Central


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
Quandaries & Queries page Home page University of Regina PIMS