Posted by **Gabby** on Tuesday, January 29, 2013 at 10:42am.

Convert each of the following points from rectangular coordinates to polar coordinates.

(-1, 1)

A) (sqrt(2), pi/4)

B) (sqrt(2), 3pi/4)

C) (-sqrt(2), pi/4)

D) (-sqrt(2), 3pi/4)

E) None of These

- Math -
**Steve**, Tuesday, January 29, 2013 at 11:19am
the angle is in QII, so (B)

Generally, the radius is expressed as a positive number, though (-sqrt(2),-pi/4) would also have been correct.

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