Question

Is -12 an integer, rational, or real number?

Answer 1

It's all three

Explanation:

Given: `-12`

Integers: `{...-3, -2, -1, 0, 1, 2, 3, 4, ...}`

Rationals: any number that is or can be made into a fraction.

Irrationals: numbers that can't be made into a fraction `{pi, sqrt(2), ...}`

Reals: any number that is rational or irrational - any number on the number line.

As you can see, `-12` is an integer, but it is also a rational number because it can be made into a fraction: `-12/1` and it is real because it can be found on the number line.