Final answer:
In the set (10, -5/4, 1.25, -2), the numbers 10 and -2 are classified as integers because they are whole numbers without any fractional or decimal parts.
Step-by-step explanation:
The set of numbers provided is (10, -5/4, 1.25, -2). To classify which numbers are integers, we review each number and determine if it is a whole number without any fractional or decimal part. Integers can be positive, negative, or zero but must not be fractions or decimals.
- The number 10 is a whole number and therefore an integer.
- The number -5/4 is a fraction and not a whole number, so it is not an integer.
- The number 1.25 has a decimal part and is not a whole number, so it is not an integer.
- The number -2 is a whole number and therefore an integer.