Josh says that -2 is an integer only and Mark says that -2 could fall into many other categories as well. Mark says that it can be classified as a real number, a rational number, and an integer. Who is correct? explain.

⇒ Real numbers are numbers that include both rational and irrational numbers. Rational numbers such as integers (-2, 0, 1), fractions(1/2, 2.5), and irrational numbers such as √3, π(22/7), etc., are all real numbers.

What is a rational number?

⇒ A rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p, and a non-zero denominator q. For example, −3/7 is a rational number,

What is an integer?

⇒ An integer is a whole number (not a fractional number) that can be positive, negative, or zero. Examples of integers are: -5, 1, 5, 8, 97, and 3,043. Examples of numbers that are not integers are -1.43, 1 3/4, and 3.14.

⇒ Every integer is a rational number but every rational number is not an integer.

Calculation:

Josh says that -2 is an integer only which is false because we know that every integer is also a rational number.

And we can also represent -2 in the form of p/q as (-2/1). Hence it is also a rational number and We know that Real numbers comprise both rational numbers as well as irrational numbers. Rational numbers include integers and fractions.

⇒ So Mark is correct about -2 that it is a real number, a rational number, and an integer.

Learn more about real numbers here:

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Josh says that -2 is an integer only and Mark says that -2 could fall into many other categories as well. Mark says that it can be classified as a real number, a rational number, and an integer. Who is correct? explain.​

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Josh says that -2 is an integer only and Mark says that -2 could fall into many other categories as well. Mark says that it can be classified as a real number, a rational number, and an integer. Who is correct? explain.