Presentation on theme: "The Coordinate Plane By: Stan Blackman Jay High School Lesson for Glencoe Algebra I Math Section 4-1 Algebra I Glencoe Mathematics 2004 The McGraw Hill."— Presentation transcript:
The Coordinate Plane By: Stan Blackman Jay High School Lesson for Glencoe Algebra I Math Section 4-1 Algebra I Glencoe Mathematics 2004 The McGraw Hill Companies Inc.
Vocabulary Words Axes - two perpendicular number lines used for locating points Origin – the intersection of the two axes Y-axis – the vertical number line X-axis – the hoizontal number line
Y-axis X-axis The four quadrants of the coordinate plane. Quadrant I Quadrant II Quadrant IV Quadrant III
Y-axis X-axis Signs of the quadrants. (+,+ ) (+,- ) (-,- ) (-,+ )
The Ordered Pair (5,10) X- coordinate Y- coordinate
Y-axis X-axis The Origin Point Origin Point (0,0)
Always start at the origin to plot a point.
Y-axis X-axis Direction of Movement for the X-Coordinate If the x- coordinate is positive move this way If the x- coordinate is negative move this way
Y-axis X-axis Direction of movement for the Y-coordinate If the y - coordinate is positive move this way If the y - coordinate is negative move this way
Y-axis X-axis Name the given point. (1,3) (-5,-1) (-2,1) (4,0)
Y-axis X-axis (4,4) (-3,-1) First move out on the X-axis Next move on the Y- axis How To Plot a Point on the Coordinate Plane