Question

Huge problem! I need to know how to convert rectangular coordinates to polar coordinates when x=0 ! please help! I know when x≠0 θ=tan^-1(y/x)

Answer 1

when x=0; your just a radius on the y axis

Answer 2

theta = 90 or 270 depending in the context ..

Answer 3

given the context "find polar coordinates for each point" and the rectangular point is (0, 2)

Answer 4

(r, t )
(2,pi/2)

Answer 5

how do you know that?
like can you explain how you would find that θ=(pi/2)

Answer 6

the y axis is perpendicular to the x axis; when you turn 90 degrees from the x axis you hit the y axis

Answer 7

alright I see what you're saying now, thanks a bunch

Answer 8

or mathic-ly

(x=0,y=2)

r = sqrt(x^2+y^2)

r = sqrt(2^2) = 2

x = r cos(t)
0 = 2 cos(90)

y = r sin(t)
2 = 2 sin(90)

theta = 90

Answer 9

but really, the logic of it all seems an easier route to me :) good luck