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# Alg 1 Unit 1

### Vocabulary

TermDefinition
sequence a list of numbers, and each number is called a term of the sequence. For example: 2, 4, 6, 8, … and 2, 5, 10, 17, … are sequences.
common difference the constant difference between consecutive terms
expression may consist of numbers, variables, and operations.
variable a list of numbers, and each number is called a term of the sequence. For example: 2, 4, 6, 8, … and 2, 5, 10, 17, … are sequences.
equilateral , all sides have the same measure.
equation a mathematical statement that shows that two expressions are equal.
solution is any value that makes an equation true when substituted for the variable.
formula is an equation written using symbols that describes the relationship between different quantities.
literal equation has more than one variable, and the equation can be solved for a specific variable.
graph of an inequality in one variable is all the points on a number line that make the inequality true.
solutions of an inequality in one variable is the set of numbers that make the inequality true.
compound inequality are two inequalities joined by the word and or by the word or.
conjunction Inequalities joined by the word and
disjunction Inequalities joined by the word or
absolute value is the distance from 0 to the number on a number line.
absolute value notation |-3| used to denote the absolute value of -3
absolute value inequality is an inequality involving the absolute value of a variable expression.
absolute value equation is an equation involving the absolute value of a variable expression.
Created by: tracymay1913