Graphing Rational Functions - Cool math Algebra Help Lessons

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Coolmath Algebra
Graphing Rational Functions Lesson 6 - Increasing and Decreasing Revisited (page 2 of 2)
---- This algebra lesson revisits increasing and decreasing with rational functions.

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How about this one?

f ( x ) = ( 3x ) / ( x^2 + 2x - 8 )

graph of f ( x ) = ( 3x ) / ( x^2 + 2x - 8 ) ... Pierre is sliding downhill in every section

It's one wild ride for Pierre! Downhill sledding all the way! But, if we said that f is decreasing everywhere, that wouldn't be quite right... Because the graph doesn't exist at x = -4 and x = 2.

It's decreasing everywhere on its domain, which is

YOUR TURN:

Given

Find the intervals where f is decreasing.

Find the intervals where f is increasing.

Given

Find the intervals where f is decreasing.

Find the intervals where f is increasing.

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