1. Chapter 10
7th Grade Math

2. Graphing Points in Four Quadrants 1/25
Coordinate
plane
A grid formed by the x- and y- axis
x-axis is a horizontal number line
y-axis is a vertical number line
origin is where the x- and y-axis intersect

4. (x, y) gives the coordinates of the location of a point
Ordered
Pairs
(x, y) gives the coordinates of the location of a point
The first number is the x-coordinate and tells us to go right or left
The second number is the y-coordinate and tells us to go up or down
The origin is at (0, 0)

5. The coordinate plane is divided into four quadrants.
The quadrants are numbered starting in the top right quadrants and counting counter clockwise

6. Lines that are parallel to the x-axis
Horizontal
lines
all y-coordinates are equal
(2, 8), (6,8), (-12, 8)
Lines that are parallel to the y-axis
Vertical
lines
all x-coordinates are equal
(-1, 4), (-1, 9), (-1, -100)