Coordinates (Mathematics 5)

1. COORDINATES
TEACHER GERALDINE S. CACHERO
MATHEMATICS 5

2. CARTESIAN PLANE (COORDINATE GRID)
•x-axis – the
horizontal
reference line on a
coordinate grid
x-
axis
y-
axis
Quadrant
I
Quadrant
III
Quadrant
IV
Quadrant
II
•y-axis – the
vertical reference
line on a
coordinate grid
origi
n

3. COORDINATES
0 1 2 3 4 5
5
4
3
2
1
0
(3,2)
• a pair of numbers that
show position on a grid
(x,y)
• For example, (3,2)
means 3 across
horizontally and 2 up
vertically.
• plot: to mark points on a
grid using coordinates

4. LET’S INVESTIGATE
5
4
3
2
1
0
0 1 2 3 4 5
1. Plot (1,0) and (5,4) on the
grid.
2. Draw a line between two
points. Use a ruler!
3. What three (3) other pairs of
coordinates are on the line?
(2,1)
,
(3,2)
,
(4,3
)