# Interactive video lesson plan for: Graphing Polar Eqn, Test for Symmetry & 4 Ex READ DESCRIPTION!

#### Activity overview:

This lesson first starts with how to test for symmetry in a polar graph.
Symmetry to the Polar Axis at 1:34
Symmetry to the line Theta=pi/2 at 8:13
Symmetry to the Pole at 10:38
Special Types of Graphs
Circles at 13:13
Limacons at 16:16 I explain how to recognize the 4 subcategories of Limacons which are Inner Loop, Cartiod, Dimpled, and Convex.
EXAMPLE of graphing a Limacon with an inner loop at 20:29
Rose Curve introduced at 34:10 THERE ARE ANNOTATION CORRECTIONS for the labels of r=asin(3theta) , and r=acos(3theta) are flipped.
EXAMPLE with even number of petals at 38:01
EXAMPLE with odd number of petals at 49:36
Lemniscates introduced at 54:03
LAST EXAMPLE at 55:14

Graphing Calculator Example at 26:50

My introductory video of Understanding Polar Coordinates https://www.youtube.com/watch?v=tKi05dfUhAA Find free review test, useful notes and more at http://www.mathplane.com

Tagged under: limacon,cartiod, loop,rose,lemniscate,polar equation,graph,graphing,symmetry,graphs polar,Equation,tarrou,tarrou' chalk talk,profrobbob,Polar Coordinate System,Math

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