Grade 8 Vocabulary (Terms #1 - 17)

Front

What is the subset of numbers that includes both positive and negative whole numbers?

Back

Integer: The set of whole numbers including negative numbers, zero, and positive numbers. Example: {..., -3, -2, -1, 0, 1, 2, 3, ...}

Front

What is a number that cannot be written as a fraction and has non-terminating decimal values?

Back

Irrational Number: Numbers that cannot be expressed as a fraction. Examples include: 8π, √2, -9.635811...

Front

What type of number can be written as a fraction, including terminating and repeating decimals?

Back

Rational Number: Any number that can be expressed as a fraction. Examples include: \(\frac{1}{4}\), -10, 5.33̅, √49.

Front

What is the process of replacing an expression with a single numerical value?

Back

Simplify: The process of reducing an expression to its simplest form.

Front

What is a relation where each input value is associated with exactly one output value?

Back

Function: A relationship where each input (independent variable) corresponds to one output (dependent variable).

Front

What is the term for a number that can be expressed as a fraction?

Back

Rational Number: A number that can be expressed as \(\frac{a}{b}\) where a and b are integers and b ≠ 0.

Front

What is the term for the set of all possible input values for a function?

Back

Domain: The complete set of possible values of the independent variable.

Front

What is the term for the set of all possible output values for a function?

Back

Range: The complete set of possible values of the dependent variable.

Front

What is the term for a number that is not a whole number and cannot be expressed as a fraction?

Back

Irrational Number: Numbers like π and √2 that cannot be expressed as a simple fraction.

Front

What is the term for a mathematical statement that two expressions are equal?

Back

Equation: A statement that asserts the equality of two expressions.