Homework Help: Polar Equations

Posted by Tabby on Friday, April 20, 2012 at 1:20pm.

I am supposed to identify the classical curve that is represented by
r = 1 + sin Theta.

I think it's a cardioid, because its equation is r = 1 + 1 sin theta (r = a + a sin theta). Is this correct?

Polar Equations - Steve, Friday, April 20, 2012 at 2:16pm
that is correct

wolframalpha . com will draw it for you. Just type in

plot r = 1 + sin(theta)
Polar Equations - Tabby, Friday, April 20, 2012 at 3:43pm
thank you so much for your time.

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