Question

# Let R be the relation from X={1,2,3,5} to Y={0,3,4,9} defined by xRy if and only if x^2=y

Discrete math
Let R be the relation from X={1,2,3,5} to Y={0,3,4,9} defined by xRy if and only if $$\displaystyle{x}^{{2}}={y}$$