Answer: the explanation is given below. The number is NOT an integer.
Step-by-step explanation: We are given to check whether the number -0.5 is an integer or not.
We know that
an integer is a number where the digits after the decimal are zero, or the denominator of its fractional form is 1.
The given number is

Here, we can see that the digits after the decimal is 5, not zero. Also,
this number can be represented as a negative fraction with denominator not equal to 1 is as follows :

Therefore, this number is NOT an integer.