Final answer:
To show the loss of 8 pounds with an integer, we use -8, as negative numbers represent decreases in mathematics.
Step-by-step explanation:
To represent the loss of 8 pounds with an integer, we would use the number -8. In mathematics, when we want to show a decrease or loss in value, we use a negative sign before the number. Therefore, the integer that represents losing 8 pounds is -8, as the negative sign indicates the loss.