Algebra Keystone Review (Module 2)

Front

What is a number pattern?

Back

A number pattern is a sequence of numbers that follow a specific rule or formula. For example, in the pattern 2, 4, 6, 8, the rule is to add 2 to the previous number.

Front

How do you find the difference between two numbers?

Back

To find the difference between two numbers, subtract the smaller number from the larger number. For example, the difference between 15 and 3 is 15 - 3 = 12.

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 which the relation is defined. For example, in the relation {(2, 140), (5, 350), (14, 980)}, the domain is {2, 5, 14}.

Front

What is the range of a relation?

Back

The range of a relation is the set of all possible output values (y-values) that correspond to the input values in the domain. For example, in the relation {(2, 140), (5, 350), (14, 980)}, the range is {140, 350, 980}.

Front

What does it mean for a relation to be a function?

Back

A relation is a function if each input value (x-value) is associated with exactly one output value (y-value). For example, the relation {(1, 3), (2, 4), (3, 5)} is a function because each x-value is unique.

Front

What is the probability of an event?

Back

The probability of an event is a measure of the likelihood that the event will occur, expressed as a ratio of the number of favorable outcomes to the total number of possible outcomes.

Front

How do you calculate the probability of rolling a sum of 3 with two dice?

Back

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 in the form (x, y). For example, (3, 5) indicates that x is 3 and y is 5.

Front

What is a relation in mathematics?

Back

A relation is a set of ordered pairs, where each pair consists of an input value and an output value. For example, the relation {(1, 2), (2, 3), (3, 4)} shows how each input is related to an output.

Front

What is the difference between domain and range?

Back

The domain is the set of all possible input values (x-values) for a relation, while the range is the set of all possible output values (y-values) that correspond to those inputs.