My Math Forum polar coordinate Curve

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 December 13th, 2011, 01:44 PM #1 Senior Member   Joined: Sep 2011 From: New York, NY Posts: 333 Thanks: 0 polar coordinate Curve
 December 14th, 2011, 07:05 AM #2 Senior Member   Joined: May 2011 Posts: 501 Thanks: 5 Re: polar coordinate Curve Why not simply graph it and match up with the correct choice?. Do you have a graphing calculator?. If so, set it to Polar mode, set the window parameters to: $\theta_{min}=1, \;\ \theta_{max}=2\pi$. Then, graph. Easy as $\pi$
December 14th, 2011, 08:09 AM   #3
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From: Lexington, MA

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Re: polar coordinate Curve

Hello, aaron-math!

Quote:

$\text{We see that: }\:\text{minimum }r \:=\:\ln(1) \:=\:0$
[color=beige]. . [/color]$\text{The curve starts at the pole (origin).}$

$\text{Then as }\theta\text{ increases, }r\text{ increases.}$

$\text{W\!e have a spiral, starting the origin }(0,\,1)$
[color=beige]. . [/color]$\text{and widening as it sweeps counterclockwise.}$

$\text{The graph is (II).}$

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