Question

Given the *xy* coordinates of a point, how can you determine its polar coordinates?

Accepted Answer

Polar coordinates are in the form (r, θ). If *x* and *y* are known, r and θ can be determined using these formulas: 

$$r = \sqrt{x^2 + y^2}$$

$$tan θ = \frac {y}{x}$$

Flashcard 11 - Upper Level: Mathematics Achievement Flashcard Set for the ISEE

Front