Coordinate Shirley Sides. 2006

Definition Grid – A pattern of horizontal and vertical lines, usually forming squares.

Definition Coordinate grid – a grid used to locate a point by its distances from 2 intersecting straight lines. 6 5 4 3 2 1 1 2 3 4 5 6

x Definition x axis – a horizontal number line on a coordinate grid. 1 1 2 3 4 5 6

y Definition y axis – a vertical number line on a coordinate grid. 6 5 4 3 2 1

Definition Coordinates – an ordered pair of numbers that give the location of a point on a grid. (3, 4) 6 5 (3,4) 4 3 2 1 1 2 3 4 5 6

Hint The first number is always the x. The second number is always the y. 6 5 (3,4) 4 3 2 1 1 2 3 4 5 6

How to Plot Ordered Pairs Step 1 – Always find the x value first, moving horizontally either right (positive) or left (negative). 6 5 (2, 3) 4 y 3 2 1 x 1 2 3 4 5 6

How to Plot Ordered Pairs Step 2 – Starting from your new position find the y value by moving vertically either up (positive) or down (negative). 6 (2, 3) 5 4 y (2,3) 3 2 1 x 1 2 3 4 5 6

How to Find Ordered Pairs Step 1 – Find how far over horizontally the point is by counting to the right (positive) or the left (negative). 6 5 (5, 4) 4 y 3 2 1 x 1 2 3 4 5 6

How to Find Ordered Pairs Step 2 – Now count how far vertically the point is by counting up (positive) or down (negative). 6 5 (5,4) 4 y 3 2 1 x 1 2 3 4 5 6

What is the ordered pair? (3,5) 6 5 4 y 3 2 1 x 1 2 3 4 5 6

What is the ordered pair? (2,6) 6 5 4 y 3 2 1 x 1 2 3 4 5 6

What is the ordered pair? (4,0) 6 5 4 y 3 2 1 x 1 2 3 4 5 6

What is the ordered pair? (0,5) 6 5 4 y 3 2 1 x 1 2 3 4 5 6

What is the ordered pair? (1,1) 6 5 4 y 3 2 1 x 1 2 3 4 5 6