Graphing on a coordinate plane

Watch this step-by-step tutorial on how to read ordered pairs.

• Study Jams- Ordered Pairs

A coordinate plane is formed by two

perpendicular lines called axes,

that lie in the plane.

0

1

2

3

4

0 1 2 3 4

The horizontal axis is the x-axis

TheVerticalAxisIs theY-axis

0

1

2

3

4

0 1 2 3 4

Point APoint BPoint CPoint DPoint E

Y- axis

X - axisAn ordered pair is….

0

1

2

3

4

0 1 2 3 4

Point APoint BPoint CPoint DPoint E

Y- axis

X - axisTo find the ordered pair for a point, we go across the x-axis and up the y- axis.For Point D: we go over 3 spaces and up 1 space the ordered pair would be (3, 1) (x, y)

When plotting a point, just think of the alphabet.

X comes before Y,

which is true about the ordered pairs….

(x, y) (across, up)

What point can be found at (1,3) ?

0

1

2

3

4

0 1 2 3 4

Point APoint BPoint CPoint DPoint E

Point A is correct!!!

Practice with Coordinate Plane

• Let’s do some practice problems on-line

• Individual Practice/HW: WB 149 #1-12

Day 2 – Length of Line Segments

1- Watch video Distance Between Two Points

2- Continue ppt

3- In-class Probe on screen (code provided)

4- Continue working on study guide– due tomorrow

How long is the line segment from the heart to the triangle?

Check out these practice problems. Log-in to take a probe and use the

following code.

PZSA292135