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mathtutor

Joined: Mar 14, 2008
Posts: 1
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graphing multiple equations

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When I try to graph multiple equations , y=log(3,x), y=log(3,x)+2, I get the message "unmatched parentheses". What's wrong?

[Oct 10, 2009 10:52:49 AM]

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pskinner

Joined: Apr 2, 2005
Posts: 694
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Re: graphing multiple equations

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When I try to graph multiple equations , y=log(3,x), y=log(3,x)+2, I get the message "unmatched parentheses". What's wrong?

Good point. You have done nothing wrong; it's a bug in the software. A workaround is to plot y=log(x),y=log(x)+2. The graphs to base 3 are similar to those to base 10. Or, if you prefer, the natural log is close enough to 3 (approx. base 2.7), so plot:

y=ln(x),y=ln(x)+2
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Principal Skinner

[Oct 11, 2009 2:22:55 PM]

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