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Polar Coordinates
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Polar to Rectangular (finding x and y)
(r, θ)
cosθ= x/r
sinθ= y/r
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)?
Counter-clockwise
How do you determine the intervals in a polar graph?
θ= 90
2θ= 45
3θ= 30
and etc...
Author
tenorsextets
ID
51211
Card Set
Polar Coordinates
Description
read title
Updated
2010-11-23T00:28:16Z
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