Math 30 home page
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The applet below illustrates vertical shift. The red graph is f(x), and the green graph is f(x)+k. Use the slider to explore the effect of changing the vertical shift by changing the value of k.
Experiment further by entering your own function
for f(x) (remember to change the second function accordingly).
MultiGraph applet written by David Eck (http://math.hws.edu/javamath/index.html)