If the polar coordinates of the point ( x , y ) are ( r , θ ), determine the polar coordinates for the following points. (Use any variable or symbol stated above as necessary.)

a) -x,y
b)-2x,-2y
c)3x,-3y

I don't understand what they are asking for because i tried the r=sqrt(x^2+y^2) and that theta = tan^-1(y/x) and it was wrong.

Question

If the polar coordinates of the point ( x , y ) are ( r , θ ), determine the polar coordinates for the following points. (Use any variable or symbol stated above as necessary.)

a) -x,y
b)-2x,-2y
c)3x,-3y

I don't understand what they are asking for because i tried the r=sqrt(x^2+y^2) and that theta = tan^-1(y/x) and it was wrong.

anonymous · Answer

Do you have the answers to this problem?

irishboy123 · Answer

see the diagram. 

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