Here's the question you clicked on:
emersonba123
Determine two pairs of polar coordinates for the point (4,-4) with 0° ≤ θ < 360°
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So the radius (r coordinate) is sqrt(32) and the first theta coordinate is 315 degrees. add another 360 to that to get a second theta coordinate, with r constant at sqrt(32)
You got the sqrt of 32 because r=x^2+y^2. Since it is in the fourth quadrant that's why it is 315 degrees? The answer has to be between 0 and 360 degrees
I'm not sure how you got 315 degrees
@FutureMathProfessor Theta has to be between 0 and 360 degrees so that means there will be one r being positive and one r being negative in another pair of coordinates.
One pair you found (sqrt(32),315) The other one will have a negative r.
(4 , 315°), (-4 , 135°) is this the answer?
it shoud say 4sqrt2
you can simplify sqrt(32) I'm sure. :) But yes.
Thank you very much!
But your r's are wrong and those pairs you gave.
Oh wait are you saying 4 or 4sqrt2?
4sqrt2 in the coordinate for the r