Rational Functions

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Exercises for students
Sketch the following graphs on paper and check your graphs using the above applet:

y = x2 / (x2 - x - 2)	y = x2 / (x2 - 2x + 1)	y = x2 / (x2 - 2x + 2)
y = (x2 + 2x) / (x2 - x - 2)	y = 1 / (x2 - x - 2)	y = x / (x2 - x - 2)
y = 1 / (3x-2)(x+2)

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