The rectangular coordinates of a point are given. Find polar coordinates for the point.
-(0, 9)
A) $( 9,0 )$
B) $\left( 9 , - \frac { \pi } { 2 } \right)$
C) $( 9 , \pi )$
D) $\left( 9 , \frac { \pi } { 2 } \right)$

Question

The rectangular coordinates of a point are given. Find polar coordinates for the point.
-(0, 9) 
A) $( 9,0 )$
B) $\left( 9 , - \frac { \pi } { 2 } \right)$
C) $( 9 , \pi )$
D) $\left( 9 , \frac { \pi } { 2 } \right)$

Quizplus · Accepted Answer

The polar coordinates of a point are given as $(r, \theta)$, where $r$ is the distance from the origin to the point, and $\theta$ is the angle from the positive x-axis to the point. For the point (0, 9), $r = 9$ and the point lies on the positive y-axis, making $\theta = \frac{\pi}{2}$ radians.

The Rectangular Coordinates of a Point Are Given (9,0)( 9,0 )(9,0)

The Rectangular Coordinates of a Point Are Given $( 9,0 )$