Find Two Functions Defined Implicitly by the Given Relation $$x + y ^ { 2 } = 64$$

Multiple Choice

Find two functions defined implicitly by the given relation.
- $$x + y ^ { 2 } = 64$$

A) $y = \sqrt { 64 - x }$ or $y = \sqrt { 64 + x }$
B) $y = \sqrt { 64 - x }$ or $y = - \sqrt { 64 - x }$
C) $y = 64 - x$ or $y = 64 + x$
D) $y = 64 - x$ or $y = - 64 + x$