anonymous
  • anonymous
Which set of polar coordinates describes the same location as the rectangular coordinates (0,-2)? A. (-2,270) B. (2,0) C. (2,180) D. (-2,90)
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
jim_thompson5910
  • jim_thompson5910
|dw:1439171761983:dw|
jim_thompson5910
  • jim_thompson5910
plot the point (0,-2) on the xy axis system |dw:1439171775217:dw|
jim_thompson5910
  • jim_thompson5910
how far is this point from the origin?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
-2?
jim_thompson5910
  • jim_thompson5910
+2 or just 2
jim_thompson5910
  • jim_thompson5910
|dw:1439171915517:dw|
jim_thompson5910
  • jim_thompson5910
distance can't be negative
jim_thompson5910
  • jim_thompson5910
|dw:1439171941621:dw|
anonymous
  • anonymous
So B? (2,0)
jim_thompson5910
  • jim_thompson5910
what is the angle marked in the drawing |dw:1439172003599:dw|
anonymous
  • anonymous
260
jim_thompson5910
  • jim_thompson5910
270 actually
jim_thompson5910
  • jim_thompson5910
r = 2 theta = 270 so one possible polar representation is (2,270)
jim_thompson5910
  • jim_thompson5910
I use the key term "possible" because there are actually infinitely many ways to do this
jim_thompson5910
  • jim_thompson5910
we can add on multiples of 360 to theta to get other representations
jim_thompson5910
  • jim_thompson5910
and I did say that the distance can't be negative, but in polar form, r can be negative yeah it's a bit strange, but think of it like this if you had the polar point (-2,90), you would face the 90 degree direction like normal. Instead of walking forward 2 units, you would walk backward 2 units. This is while facing the 90 degree angle. You don't stop facing this direction
jim_thompson5910
  • jim_thompson5910
|dw:1439172216337:dw|
jim_thompson5910
  • jim_thompson5910
|dw:1439172238347:dw|
jim_thompson5910
  • jim_thompson5910
so in terms of polar points, (2,270) = (-2,90)
Loser66
  • Loser66
YOu can test the options for a) (-2,270) that is r =-2, theta = 270 and x = r cos theta = -2 * cos (270) =0 y = r sin theta = -2 *sin (270) = -2*(-1) =2 hence it is (0,2) while the given point is (0,-2) therefore, a) is not the correct answer. Do the same with other options until you get (0,-2), the given point.

Looking for something else?

Not the answer you are looking for? Search for more explanations.