The numbers consisting of the negative integers, zero, and the positive integers.
The absolute value of a number a is the distance between a and 0 on a number line. The absolute value of a is written as |a|.
Two numbers that are the same distance from 0 but on opposite sides of 0.
The number 0 is the additive identity because the sum of any number and 0 is the original number.
The additive inverse of a number a is the opposite of the number, or -a. The sum of a number and its additive inverse is 0.
The answer to an addition problem.
The answer to a subtraction problem.
The number 1.
The answer to a multiplication problem.
The sum of the values in a data set divided by the number of values. Also called the average.
Identity Property of Addition
The sum of any addend and 0 is that number.
Identity Property of Multiplication
The product of any factor and 1 is that number.
Inverse Property of Addition
The sum of a number and its additive inverse, or opposite, is 0.
For all numbers a, b, and c, a(b+c)= ab+bc and a(b-c)= ab-ac.
Terms of an expression
The parts of an expression that are added together or subtracted from.
Terms that have identical variable parts raised to the same power. Two or more constants are also considered like terms.
The number part of a term that included a variable.
A term that has a number but no variable.
A coordinate system formed by the intersection of a horizontal number line, called the x-axis, and a vertical number line, called the y-axis.
The horizontal number line in a coordinate plane.
The vertical number line in a coordinate plane.
The point (0,0) where the x-axis and the y-axis meet in a coordinate plane.
One of the four regions that a coordinate plane is divided into by the x-axis and the y-axis. They are numbered counter clockwise starting in the top right hand quadrant I, II, III, IV (1-4 in Roman numerals).
A pair of numbers (x,y) that can be used to represent a point in a coordinate plane. The first number is the x-coordinate and the second number is the y-coordinate.
The first term in a coordinate pair.
The second term in a coordinate pair.
Integers less than 0.
Integers greater than 0.
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