17 terms

coordinate plane

A plane formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis

x- axis

the horizontal axis on a coordinate plane

y-axis

the vertical axis on a coordinate plane

ordered pair

A pair of numbers used to locate a point on a graph (x,y)

reflection

A transformation of a point/ figure that flips the point/figure across the x or y axes.

quadrant

one of four sections into which the coordinate plane is divided

origin

(0,0) Intersection of the x and y axes. Center of the coordinate plane.

unit distance

when you count the LINES between 2 points.

opposites

2 numbers who have the same absolute value but are on opposites sides of zero on the number line.

absolute value

a numbers unit distance from zero.

integer

a number that can be written without a fraction or decimal. a whole number, can be positive or negative.

Quadrant I

(+,+)

Quadrant II

(-,+)

Quadrant III

(-,-)

Quadrant IV

(+,-)

Reflection over x-axis

x coordinate stays the same and change the y coordinate to its opposite.

Reflection over y-axis

y coordinate stays the same and change the x coordinate to its opposite.