5.2.2 Radicals & Rational Irrational Vocab

Front

What is the term for the number under a radical sign?

Back

Radicand

Front

What is the opposite operation of taking a square root?

Back

Squaring

Front

What type of number is represented by a repeating decimal, such as 0.535353...?

Back

Rational, because there is a repeating pattern.

Front

Is the number 0 considered rational or irrational?

Back

Rational.

Front

What type of number is π (pi)?

Back

Irrational.

Front

Define a rational number.

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

Define an irrational number.

Back

An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as a ratio of two integers.

Front

What is the square root of 16?

Back

4.

Front

What is the square of 5?

Back

25.

Front

Give an example of a rational number.

Back

1/2, 0.75, or -3.