Transcript Ordered Pairs

Ordered Pairs
• An ordered pair comes in the
form (x,y) with x always first
and y always second
• The x value refers to the
numbers on the x axis
• The y value refers to the
numbers on the y axis
Coordinate Plane
• The coordinate plane consists of 4
quadrants
• Starting in the upper right hand
corner with quadrant 1 and moving
counterclockwise to quadrant
numbers 2, 3, & 4.
• There are 7 different places in the
coordinate plane. What are they?
Coordinate Plane
Plotting Points
• To plot a point on the x,y axis, always
start at the origin.
• Using the x value, move left or right
on the x axis depending on whether
the x value is positive or negative.
• Using the y value, move up or down
on the y axis depending on whether
the y value is positive or negative.
More on plotting points
• For every 1 point on a graph it
takes two numbers to identify
the correct location.
• Think of a game of Bingo as it
needs both a letter and a
number to identify the correct
square.
Plot the Point (2,3)
(2,3)
Plot the Point (-2,-1)
(-2, -1)
How is each Pt. Different?
(-2,2)
(-2,-1)
(2,3)
(3,-1)