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For more information, please see full course syllabus of Pre Algebra
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Lecture Comments (1)

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Post by bo young lee on December 6, 2012

i dont understand the vocab and this question(i mean extra example 1and2)

Graphing in the Coordinate Plane

  • Coordinate Plane: grid formed by intersection of two number lines
    • y-axis: a vertical number line
    • x-axis: a horizontal number line
  • Quadrants: the axes divide the plane into four quadrants
    • Origin: where the axes intersect
  • Ordered Pair: (x,y), gives the coordinates of a point‘s location
    • x-coordinate: the position to the right or left of the y-axis (x, y)
    • y-coordinate: the position above or below the x-axis (x, y)
  • Remember that in an ordered pair, the x term always come before the y: (x, y). An easy way to remember this is that the letters are in alphabetical order.

Graphing in the Coordinate Plane

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • What You'll Learn and Why 0:06
    • Topics Overview
  • Vocabulary 0:17
    • Coordinate Plane
    • y-axis
    • x-axis
    • Quadrants
  • More Vocabulary 0:49
    • Origin
    • Ordered Pair
    • x-coordinate
    • y-coordinate
  • Labeling Vocabulary 1:24
    • Example: Label the Vocabulary
  • Graphing Points on a Coordinate Plane 3:08
    • Example: Graph and Label the Locations
  • Quadrants 6:18
    • Example: Name the Quadrants of Each Ordered Pair
  • Extra Example 1: Draw and Label 10:18
  • Extra Example 2: Graph the Ordered Pair 11:20
  • Extra Example 3: Graph the Ordered Pair 12:42
  • Extra Example 4: Name the Quadrants of Each Ordered Pair 13:32