what is the non-permissible value for the rational expression y + 5 / x - 3?
a) x = 0
b) x = 3
c) y = 3
d) y = 0
c
if you mean it the way you typed it, then x≠0
if you meant (y+5)/(x-3) then x ≠ 3
since y is in the numerator, there would be no restriction on y, and choices c) and d) would not be correct.