Define Integer: Define what an integer is.An integer is any whole number, including negative numbers, 0, and positive numbers, but not fractions or decimals.
Determine Whole Number: Determine if −3 is a whole number without a fractional or decimal part.−3 is a whole number and it is to the left of zero on the number line. It does not have a fractional or decimal part.
Conclude −3 Integer: Conclude if –3 meets the criteria of being an integer.Since –3 is a whole number and does not have a fractional or decimal part, it is an integer.