Question

Which of the following is true about −9 ?(1 point) Responses It is both an integer and a whole number. It is both an integer and a whole number. It is an integer but not a whole number. It is an integer but not a whole number. It is a whole number but not an integer. It is a whole number but not an integer. It is an integer but not a rational number.

Answer 1

The correct response is: It is an integer but not a whole number.

• Integers include all whole numbers and their negative counterparts, so -9 is an integer.
• Whole numbers are non-negative integers, which means they include 0 and all positive integers (0, 1, 2, 3, ...). Therefore, -9 is not a whole number.