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MMS SolvingEquations
Matoaca Middle School Solving Equations Vocabulary
term | definition |
---|---|
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 |