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Ch 9 Polar Coordinates and Complex numbers. L9.2 Graphs of Polar equations. You must be able to match the graph with its name and its equation. Classical Curves. Petals of a rose.
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Ch 9 Polar Coordinates and Complex numbers L9.2 Graphs of Polar equations
You must be able to match the graph with its name and its equation.
Petals of a rose • n-petalled rose if n is odd, or a 2n-petalled rose if n is even. If n is rational but not an integer, a rose-like shape may form but with overlapping petals. Note that these equations never define a rose with 2, 6, 10, 14, etc. petals. The variablea represents the length of the petals of the rose.
Classical CurvesCardioid – a special case of the limacon family of curves
Classwork - Handout Homework – page 565 11-22
Experiment with your calculator. • Try graphing the classic polar graphs. • Experiment with different values for aand b and determine what effect each has on the graph. • Experiment with the sin and cos and determine what effect each has on the graph. • Write your equation on your handout chart and sketch its graph below.
Now lets try the following problems. • Copy the questions on your notebook paper. • Write your answers. • Check for correctness.