1.
A symbol, usually a letter like x or y, that represents an unknown numerical value in an equation or inequality.
2.
A fixed value in an expression or equation that does not change (e.g., the number 5 in x+5).
3.
The numerical factor multiplied by a variable in a term (e.g., 3 is the coefficient in 3x).
4.
A combination of constants, variables, and mathematical operations (e.g., 2x+7).
5.
A single number or variable, or the product of several numbers and variables (e.g., 4x, −2, and y2 are all terms)
6.
The value or set of values that makes an equation or inequality true when substituted for the variable.
7.
The process of using inverse operations to get a variable alone on one side of an equation or inequality.
8.
A mathematical statement that shows two expressions are equal, separated by an equals sign (=) (e.g., x+3=8).
9.
A mathematical statement that compares two expressions using an inequality sign (<,>,≤,≥), showing they are not equal (e.g., 2x−1>5).
10.
Indicates that the expression on the left is smaller than the expression on the right.
11.
Indicates that the expression on the left is larger than the expression on the right.
12.
Indicates that the expression on the left is smaller than or the same as the expression on the right.
13.
Indicates that the expression on the left is larger than or the same as the expression on the right.
14.
The value that separates the solutions from the non-solutions on a number line; it's the point where the inequality would become an equality.
15.
The entire range or collection of numbers that satisfy an inequality, often graphed on a number line or written in set notation (e.g., x>4).
