Posted by prethy on .
state the restrictions on the variables
x/xy
would the restrictions be x be 1 and y be zero

math 
Henry,
Restrictions are values of x and y that causes the denominator to = 0.
x / (x  y),
Set denominator = 0:
x  y = o
solve for x:
x = y,
So when x = y , the denominator = 0.