Chapter 3 Negative Numbers Flashcards
coordinate plane
A plane formed by a horizontal line called the
x-axis and a vertical line called the y-axis
line of symmetry
A line that divides a figure into two halves
that are reflections of each other
ordered pair
A pair of numbers used to locate a point on
a grid.
negative integer
Any integer less than zero
opposites
Two numbers that are the same distance,
but in opposite directions, from zero on a
number line
line symmetry
A figure has line symmetry if it can be folded
about a line so that its two parts match
exactly
integers
The set of whole numbers and their
opposite
absolute value
The distance of an integer from zero
on a number line
origin
The point where the two axes of a
coordinate plane intersect; (0,0)
quadrants
he four regions of the coordinate plane
separated by the x- and y-axes
x-axis
The horizontal number line on a coordinate
plane
y-axis
The vertical number line on a coordinate
plane
positive integer
Any integer greater than zero
rational number
Any number that can be written as a ratio
where a and b are integers and b ≠ 0
x-coordinate
The first number in an ordered pair; tells
the distance to move up or down from (0,0
