Question

This one polar coordinates one really bugs me -
http://prntscr.com/b1w9g2

Answer 1

it is ( 3 , 90 degrees )

Answer 2

since polar coordinates is represented by (r,angle)
here, r = distance from the origin
angle = is the angle made by +ve x-axis

Answer 3

Okay, so but r in the original is -3.

Answer 4

I guess I just don't understand how I get the equation to figure out how to convert what I need to convert.

Answer 5

we already fond the the coordinates of A
for the coordinates of B,
again use ( r, angle)
so , r = dist. OB
= \[3\sqrt{2}\]
and angle = 45 degrees