Question

Is negative one a rational number?
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Answer 1

Answer: -1 is a rational number.

Step-by-step explanation: -1 is a rational number because it is an integer. An integer can be any number, such as -5, 5, 0, 3, etc.

Rational numbers can also be perfect squares (i.e square root of 25), it can be repeating decimals or decimals in general.

Irrational numbers are numbers that cannot be written as a fraction OR that are imaginary.

Irrational numbers would be repeating decimals that do not have the same values repeated, such as Pi. Pi cannot be written as a fraction, only estimated. Irrational numbers can also be imaginary numbers such as the square root of -4. There is no number in this world that can multiply itself and become -4. A negative times a negative is positive, and a positive times a positive is a positive. This means the square root -4 is imaginary and therefore irrational.

Answer 2

Yes.

Explanation:

All integers, fractions, whole numbers & natural numbers fall into the category of rational numbers.

How are integers rational numbers?

The definition of rational numbers says that any number that can be written in the form of p/q, where p & q are integers & q is not equal to 0 are categorised into rational numbers. This is in the form of the fraction. We know that, by dividing the integers by 1, we'll get them as a fraction. Sp, integers are rational numbers.

For example:

- 1 = -1/1 (p/q form; so it's a rational number)

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Hope it helps ⚜