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# MMS SolvingEquations

### Matoaca Middle School Solving Equations Vocabulary

termdefinition
zero pair the result of pairing one positive counter with one negative counter
absolute value the distance from zero on the number line
additive inverse an integer and its opposite. The sum of an integer and its opposite is zero.
coefficient the numerical part of an expression
coordinate system or coordinate plane a plane made up of a horizontal number line and a vertical number line that intersect at their zero points
defining a variable choosing a variable and a quantity for the variable to represent in an equation
inequality a mathematical sentence that contains the symbols < or >,
integer the whole numbers and their opposites. For example...-3, -2, -1, 0, 1, 2, 3, ...
negative integer integer less than zero
opposites Two numbers are opposites of each other if they are represented by points that are the same distance from zero, but on opposites of 0.
ordered pair a pair of numbers used to locate a point in the coordinate system. It is written in this form: (x-coordinate, y-coordinate)
origin the intersection of the x- and y-axis in a coordinate system
positive integer integer greater than zero
quadrant one of the 4 regions into which the intersecting number lines divide the coordinate system
rule for multiplying integers The product of two integers with different signs is negative.
rule for subtracting integers To subtract an integer, add its additive inverse. Ex. Arithmetic: 6 - 3 = 6 + (-3)
term a number, a variable, or a product of numbers and variables. 2 or more terms in one expression are separated by operation signs such as +, -, x, /, etc.
x-coordinate the first number of an ordered pair
y-coordinate the second number of an ordered pair
y-axis vertical number line in a coordinate palne
x-axis horizontal number line in a coordinate plane
Created by: DDavis