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Polar to Rectangular (finding x and y)

Rectangular to Polar (finding r)
 (x, y)
 r^2= x^2 + y^2
 tanθ= y/x
 tan^1(y/x)

Circle:
Line:
Spiral:
 r= (a number)
 θ= (radian measure)
 r= θ

When r= cosθ or sinθ, you need to use ______ to find the points for the graph.
table of values

When graphing a polar graph, always go (which direction)?
Counterclockwise

How do you determine the intervals in a polar graph?

