Question

The solution to an inequality is given in set builder notation as {x l x > }. What is another way to represent this solution set?

(–∞ , ]
(–∞ , )
(, ∞)
[, ∞)

Answer 1

A set-builder notation is a mathematical notation for describing a set by enumerating its elements or stating the properties that its members must satisfy. In your case, the set builder notation {x l x > } means that the set consists of all elements that are greater than.

Consider number line. Plot the point as unfilled circle that goes after > sigh and shade the ray that goes from this point to the right. Then another way to represent this solution is

( ,∞).

Answer: correct choice is C