Business Calculus
[4,∞)\(\left\[\lbrack\)4,\(\infty\]\right\))[4,∞)
(−∞,−4]and[4,∞)\(\left\)(-\(\infty\),-4\(\right\]\rbrack\[\text{and}\]\left\[\lbrack\)4,\(\infty\]\right\))(−∞,−4]and[4,∞)
(−∞,−4]and[−4,∞)\(\left\)(-\(\infty\),-4\(\right\]\rbrack\[\text{and}\]\left\[\lbrack\)-4,\(\infty\]\right\))(−∞,−4]and[−4,∞)
(−∞,4]and[4,∞) \(\left\)(-\(\infty\),4\(\right\]\rbrack\[\text{and}\]\left\[\lbrack\)4,\(\infty\]\right\)) (−∞,4]and[4,∞)