Beginning & Intermediate Algebra
[0,∞)[0,∞)
(−∞,0)∪(4,∞)(-∞,0) ∪ (4,∞)
[0,4)∪(4,∞)[0,4) ∪ (4,∞)
(0,4)∪(4,∞)(0,4) ∪ (4,∞)