a property of the real numbers that states that the order in which numbers are added or multiplied does not change the value
commutative property
a two-dimensional system in which a location is described by its distance from two intersecting, perpendicular axes
coordinate plane
the result of subtracting two numbers
difference
the number being divided
dividend
the number that another number is to be divided by
divisor
a number that is multiplied
factor
a shape or object that has been transformed
image
a number belonging to the set made up of the whole numbers and their opposites
integer
opposite operations that undo one another
inverse operations
the mirror line; the line across which a figure is flipped
line of reflection
the line which divides a figure into two congruent mirror images
line of symmetry
property where a figure can be folded along a line to create two congruent mirror images
line symmetry
a number belonging to the set made up of the counting numbers: 1, 2, 3, and so on
natural number
a number that is less than zero
negative number
a line that graphically represents all numbers
number line
two numbers that are the same distance from zero on the number line but in opposite directions
opposite numbers
a group of two numbers written in the order (x, y), where the first value represents a horizontal position and the second value represents a vertical position
ordered pair
the intersection of the x-axis and y-axis
origin
a number that is greater than zero
positive number
the original shape or object that is being transformed
pre-image
the result of multiplication
product
the four sections of the coordinate plane
quadrants
the result of dividing two numbers
quotient
a transformation in which a figure turns around a fixed center point.
rotation
a transformation in which a figure is flipped across a line to give a mirror image of the original figure
reflection
the result of adding two or more numbers
sum
a change made to a shape or object
transformation
a transformation in which a figure is slid to a new location
translation
a number belonging to the set made up of zero and the natural numbers
whole number
the horizontal axis on the coordinate plane
x-axis
the horizontal distance from the y-axis; written first in an ordered pair
x-coordinate
the vertical axis on the coordinate plane
y-axis
the vertical distance from the x-axis; written second in an ordered pair