Which statement is true about the number −5 ? The number −5 is not a rational number because it cannot be written as a ratio of
integers. The number −5 is a rational number because it can be written as the fraction −51 . The number −5 is a rational number because it can be written as the fraction −50 . The number −5 is not rational number because it is a negative integer. A number line ranging from negative fourteen to positive six, with increments of one unit.
The terms even and odd only apply to integers; 2.5 is neither even nor odd. Zero, on the other hand, is even since it is 2 times some integer: it's 2 times 0. To check whether a number is odd, see whether it's one more than some even number: 7 is odd since it's one more than 6, which is even.
Another way to say this is that zero is even since it can be written in the form 2*n, where n is an integer. Odd numbers can be written in the form 2*n + 1. Again, this lets us talk about whether negative numbers are even and odd: -9 is odd since it's one more than -10, which is even.
