Quarter 1 RECAP

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero. Examples include 1/2, -3, and 0.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction. Its decimal representation is non-repeating and non-terminating. Examples include √2 and π.

Tags

CCSS.8.NS.A.1

Front

What is a whole number?

Back

A whole number is a non-negative integer, which includes 0 and all positive integers. Examples include 0, 1, 2, and 3.

Front

What does it mean to reflect a point over the y-axis?

Back

Reflecting a point over the y-axis means to create a mirror image of the point across the y-axis. For example, the reflection of (2, -4) is (-2, -4).

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Front

What is the definition of a real number?

Back

A real number includes all the rational and irrational numbers. It can be represented on the number line.

Front

What is the diagonal length of a rectangle?

Back

The diagonal length can be found using the Pythagorean theorem: d = √(length² + width²). For an iPad with a length of 9.2 inches, the diagonal is 9.2 inches.

Tags

CCSS.8.G.B.7

Front

What is the relationship between whole numbers and integers?

Back

All whole numbers are integers, but not all integers are whole numbers. Whole numbers are non-negative integers.

Front

What is a non-repeating decimal?

Back

A non-repeating decimal is a decimal that does not have a repeating pattern. It is classified as an irrational number.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as fractions and have non-repeating, non-terminating decimals.