Review 8.2 A 8.2B

Front

What is 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

What is 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

Is -7 a rational number?

Back

Yes, -7 is a rational number because it can be expressed as -7/1.

Front

Is √20 a rational number?

Back

No, √20 is an irrational number because it cannot be expressed as a fraction.

Front

What is the approximate value of √5?

Back

The approximate value of √5 is about 2.236.

Front

Which point on a number line represents √5?

Back

Point B represents the value of √5.

Front

What is the approximate value of √54.5?

Back

The approximate value of √54.5 is about 7.38.

Front

Which point on a number line represents √54.5?

Back

Point W represents the value of √54.5.

Front

What is the approximate value of √23?

Back

The approximate value of √23 is about 4.796.

Front

Which point on a number line represents √23?

Back

Point L represents the location of √23.