Question

Explain (linear inequations representing of the solution on a number line)
the pic contains answer too but I don't understand how it's done ​

Answer 1

Step-by-step explanation:

They have said that all the point marked lie between are called x

and x is lower or equal to 4 and greater than -2

Also a point to note is all are integers which is represented by x  ∈ Z

∈ - belongs to

Z - integers

So x ∈ Z basically means that x will be an integer and no other rational/irrational number between -2 and 4