DECEMBER 17GLE 29

Do NowWrite down 4 things that you know

about a COORDINATE GRID

Objectives

Name the parts of a coordinate plane

Locate points on a coordinate plane

Use x- and y- values

Words to Learn

X-axis

Y-axis

Origin

X-coordinate

Y-coordinate

Ordered Pair

Terms I Need to Know

X-axisHorizontal (left to right/ west to east)

Y-axisVertical (up to down/ north to south)

Origin (0, 0)Point where x and y meet to form a right

angle

New Terms

X-coordinatePoint right or left of the origin

Y-coordinatePoint up or down of the origin

Order pairsTwo numbers that tell where the x-coordinate

andy-coordinate form the point

More Words to Learn

Axes

Coordinates

Coordinate Plane

Quadrants

What Do the Mean?

AxesTwo perpendicular number lines that meet at Their zero point

CoordinatesTwo numbers used to locate a point on a coordinate plane

Coordinate PlaneA region formed by a pair of axes

QuadrantsFour regions where the coordinate plane is divided.

Coordinate Grid

Horizontal axis (x-axis)

Vertical axis (y-axis)

Origin

Four Quadrants

Coordinate Grid

Quadrants

Quadrant I (+, +)

Quadrant II (-, +)

Quadrant III (-, - )

Quadrant IV (+, -)

Ordered pairs

(x, y)

X = horizontal axis

Y = vertical axis

So, what are ordered pairs?

Ordered pairs

Two numbers written in a certain order. Usually written in parentheses like this: (4,5)

Can be used to show the position on a graph, where the "x" (horizontal) value is first, and the "y" (vertical) value is second.

Here the point (12,5) is 12 units along, and 5 units up

Identify the Quadrants

Example

(4, 5)

What quadrant would this be located?

Do I start with my x-axis or y-axis?

What number is on my x-axis and y-axis?

(4, 5)

Quadrant I

Positive , positive

Start with my x-axis

4 is my x and 5 is my y

Identify the Quadrant for each ordered pair

( -6, 3)

(-8, -8)

(4, -3)

(5, 2)

Where are my quadrants?

(-6, 3) Quadrant II

(-8, -8) Quadrant III

(4, -3) Quadrant IV

(5, 2) Quadrant I

Apply the Idea- Graphing

3 east, 4 north and 3 east, 5 south

11 west, 18 north and 11 west, 27 south

Write about it

Is the point (2, 5) on the coordinate plane the same as the point (5,2)?

Explain your answer.