Which one of the following inequality is represented on this number line?
Note: In a number line, a closed circle on the number gets included in the solution, while an open circle on the number will not get included in the solution.
There is a open circle at 2 with the line showing the numbers that are less than 2.
This means x<2 (writing the x on the left-hand side).
There is also an open circle at -2, with the numbers greater than -2 indicated. This means x>−2 or −2<x.
(writing the x on the right-hand side).
The line between these two points means that x satisfies both the inequalities, so a double inequality must be created.
−2<x and x<2
Combining both the inequalities gives −2<x<2.
Hence, x is greater than −2 and x is less than 2.