A value that is greater than or equal to every element of a set of data. But be careful! 23 is also an upper bound (it is greater than any element of that set), in fact any value 22 or above is an upper bound, such as 50 or 1000.

How do you know if a function is upper bound?

If you divide a polynomial function f(x) by (x - c), where c > 0, using synthetic division and this yields all positive numbers, then c is an upper bound to the real roots of the equation f(x) = 0.

What is an upper bound in calculus?

Geometrically, an upper bound is. a horizontal line that the graph of the function does not go above. Similarly, a lower bound is a horizontal line that the graph does not go. below. A bound in absolute value 'traps' the graph of the function in.