What is a bound of a function? Precalculus Real Zeros of Polynomials Upper and Lower Bounds 1 Answer Wataru Nov 1, 2014 If real numbers #L# and #U# satisfy the inequalities #L le f(x) le U#, for all #x# in the domain of #f#, then #L# is a lower bound of #f# and #U# is an upper bound of #f#. I hope that this was helpful. Answer link Related questions How do I find the upper bound of a function? How do I find the lower bound of a function? How do I determine whether a function is bounded? How do I calculate the upper bound of a rectangle? How do I find the upper bound of a polynomial? How can functions be used to solve real-world situations? How do I find the greatest lower bound of a set? How do I find the least upper bound of a set? See all questions in Upper and Lower Bounds Impact of this question 3662 views around the world You can reuse this answer Creative Commons License