Coordinate Plane

Coordinate Plane. It is made up the X-axis (a horizontal number line) and Y-axis (a vertical number line). The X and Y axes intersect at the origin (0,0) and are perpendicular to each other.

We use ordered pairs of numbers (X, Y) to locate points in the plane. To find a point on the plane, first move horizontally along the x-axis and locate the X value; then move vertically to locate the Y value; draw a point where they meed, as shown.

Coordinates of a point (X, Y)

Coordinates give the position of a point on each axis of the Coordinate Plane.

Each coordinate gives the X-value first, followed by the Y-value.

Coordinates are written in parentheses separated by a comma.

The coordinate plane has four quadrants which are labeled counter-clockwise (using Roman Numerals)

The Coordinate Plane

X-axis Reflection

Y-axis Reflection

Reflect Across

Point, Line, and Plane

Intersecting Lines

Graphing Linear Equations

Graphing the X and Y Intercepts

Slope

Slope from a Table

Slope 3

Coordinate Plane Help

Slope Help’

Coordinate Plane Writing

Slope of a Line (Writing)

EQ06 Find the Slope 1

EQ08 Find the Slope 2

EQ07 Slope (given 2 points)

EQ09 Find the slope and the y-intercept

SE05 Create a Table given an Equation

Cartesian Plane

LINEAR RELATIONSHIPS
A function represents a dependence of one quantity on another and can be described in a variety of ways. In this unit, in addition to deriving and interpreting y=mx and y=mx + b, students will represent directly proportional and linear relationships using verbal descriptions, tables, graphs, and formulas, and translate among these representations.

Linear_Relationships_(Help)

Linear_Sequences_(Help)