Polar Coordinates

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

51211

Card Set

Polar Coordinates

Description

read title

Updated

2010-11-23T00:28:16Z

Show Answers