7/8 MATH VOCABULARY

EQUATION

• A mathematical sentence that shows that the two expressions are equivalent.

VARIABLE

• A symbol used to represent a quantity that can change.

INEQUALITY

• A mathematical sentence that shows the relationship between quantites that are not equivalent.

INTEGER

• The set of whole numbers and their opposites.

ORDER OF OPERATIONS

• A rule for evaluating expressions: first preform the operations in parentheses, than compute powers and roots, then preform all multiplecation and division from left to right and then preform all addition and subtraction from left to right.

SOLUTION OF AN EQUATION

• A value or values that make an equation true.

RATIONAL NUMBER

• Any number that can be expressed as a ratio of two integers.

ALGEBRAIC EXPRESSION

• An expression that contains at least one variable.

ORDERED PAIR

• A pair of numbers that can be used to locate a point on the coordinate plane.

ORIGIN

• The point where the x axis and y axis intersect on the coordinate plane (0,0)