12/12 Warm-Up Math 8

Front

What is the domain of a relation?

Back

The domain of a relation is the set of all possible input values (x-values) for the relation.

Front

What is the range of a relation?

Back

The range of a relation is the set of all possible output values (y-values) for the relation.

Front

Identify the domain of the following relation: (-6,14), (0,32), (2,38), (4,44)

Back

The domain is {-6, 0, 2, 4}.

Front

Solve the equation: −18 − 6k = 6(1+ 3k)

Back

k = -1.

Front

What are the x-values in a set of ordered pairs called?

Back

The x-values are called the domain.

Front

What are the y-values in a set of ordered pairs called?

Back

The y-values are called the range.

Front

Give the range of the set of ordered pairs: (2, 11), (9, -3), (7, 21), (-8, 6)

Back

The range is {11, -3, 21, 6}.

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers used to represent a point in a coordinate system, written as (x, y).

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol used to represent an unknown value in mathematical expressions or equations.