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#1 2007-01-02 07:37:26

Neha
Member
Registered: 2006-10-11
Posts: 173

graphing

Graph the following function showing all x-intercepts,holes,and asymptotes:

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


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#2 2007-01-02 08:50:46

Ricky
Moderator
Registered: 2005-12-04
Posts: 3,791

Re: graphing

Hint: x^2 - 3x = x(x-3)


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

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#3 2007-01-03 04:08:50

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,905

Re: graphing

Ricky wrote:

Hint: x^2 - 3x = x(x-3)

Is your function


or


IPBLE:  Increasing Performance By Lowering Expectations.

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#4 2007-01-03 04:17:10

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,905

Re: graphing

Some plots:

View Image: f1.GIF View Image: f12.GIF View Image: f13.GIF View Image: f2.GIF

Last edited by krassi_holmz (2007-01-03 04:20:08)


IPBLE:  Increasing Performance By Lowering Expectations.

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#5 2007-01-03 04:21:35

krassi_holmz
Real Member
Registered: 2005-12-02
Posts: 1,905

Re: graphing

And, of course, you can use the Mathsisfun Function Grapher:
http://www.mathsisfun.com/graph/function-grapher.php
smile


IPBLE:  Increasing Performance By Lowering Expectations.

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