Plot the given point P(r,0) and then find three different representations of point P that have the following conditions. (a) r>0, -2150 0, 2n=0 0 and - 2ns 0 0 and 21 5 0 0 and 21:5 0 =: 411'? E (Type an ordered pair. Type an exact answer. using I! as needed. Use integers Dr fractions for any.r numbers in the expression. Simplify your answer.)