Today in class, we learned about polar graphing. The points are written as (r (the directed distance from the origin, θ (the angle drawn in standard position)). An example would be (4, 60°). We also learned how to convert from polar to rectangular by using the formula x=rcosθ and y=rsinθ. For example, you would insert the formula into (4, 180°) to become (4cos180°, 4sin180°) which would solve to (-4, 0). Finally we learned how to convert from rectangular to polar. You would use the formula, x^2 + y^2 = r^2 and y/x = tanθ, and there may be more than one solution.
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