Rational and Irrational Numbers

What makes a number a rational number?

• It can be written as a fraction of two whole numbers.

• It has a decimal that goes on forever without repeating.

• It cannot be written as a fraction.

• It is always a whole number.

Are all integers considered rational numbers?

• No, only positive integers are rational.

• Yes, all integers can be written as a fraction.

• No, only negative integers are rational.

• Only integers that are not zero are rational.

Which type of decimal number is considered rational?

• Decimals that end (finite).

• Decimals that repeat a pattern forever.

• Decimals that go on forever without repeating.

• Both decimals that end and decimals that repeat a pattern forever.

Which of the following is an irrational number?

• The square root of 9.

• The number Pi (π).

• The fraction 3/4.

• The decimal 0.25.