Coordinate Graphing

Coordinate Graphing

A vertical number line.

Y-Axis

A horizontal number line.

X-Axis

Quadrants

The x-axis and y-axis create 4 sections called quadrants.

Multiple Choice

If the x and y values are both positive, the point will be located in which quadrant?

• I

• II

• III

• IV

How to graph ordered pairs.

(x, y) represents an ordered pair.

The x-value tells you whether you should move left or right.
If the x-value is positive, you move to the right.
If the x-value is negative, you move to the left.

The y-value tells you whether you should move up or down.
If the y-value is positive, you move up
If the y-value is negative, you move down

Dropdown

The ordered pair (3, 9) tells you to move 3 spaces​ ​

Select answer

and 9 spaces ​ ​

Select answer

Graphing

Graph

A (0, 3)

B (3, 4)

C(-2, 5)

D(-6, -7)

E (10, -4)

• ​The y-values stay the same.

• The x-values become their opposite

Over the y-axis

• The x-values stay the same

• The y-values become their opposite
  

Over the x-axis

Reflecting Points
Creates a mirror image.

​(2, 3) reflected over the x-axis becomes (2, -3)

The x-value stayed the same, and the y-value became the opposite.

​(2, 3) reflected over the y-axis becomes (-2, 3). The y-value stays the same, and the x-value becomes the opposite.

Graphing

Graph the point (2, 3) and its reflection over the y-axis.

Graphing

Graph (9, -3) and its reflection over the x-axis.