Algebra C&C Unit 3 Vocab Flashcard

Front

What is a Linear Inequality?

Back

A mathematical expression in which two expressions are compared using the inequality symbol. Almost the same as a linear equation, except the equals sign is replaced with an inequality.

Front

What is an explicit formula?

Back

Expresses the nth term of a sequence in terms of n.

Front

What is the definition of Inequality?

Back

The relationship between two values showing if one is less than, greater than, or simply not equal to another value. (<, >, ≤ or ≥)

Front

What is a recursive formula?

Back

Defines the terms in a sequence by relating each term to the ones before it.

Front

What is an Arithmetic Sequence?

Back

A sequence where each term increases by adding/subtracting some constant k. This is in contrast to a geometric sequence where each term increases by dividing/multiplying some constant k.

Front

What is the difference between a linear equation and a linear inequality?

Back

A linear equation uses an equals sign to show that two expressions are equal, while a linear inequality uses inequality symbols to show the relationship between the expressions.

Front

How do you graph a linear inequality?

Back

Graph the corresponding linear equation as a boundary line, then shade the region that satisfies the inequality (above for > or ≥, below for < or ≤).

Front

What is the general form of a linear inequality in two variables?

Back

Ax + By < C, Ax + By > C, Ax + By ≤ C, or Ax + By ≥ C, where A, B, and C are constants.

Front

What is the common difference in an arithmetic sequence?

Back

The constant value that is added or subtracted to get from one term to the next in the sequence.

Front

What is a geometric sequence?

Back

A sequence where each term is found by multiplying or dividing the previous term by a constant value.