chapter 10 graphing in the coordinate plane. chapter 10 section 10-1 objective: at the end of the...
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Chapter 10Graphing in the Coordinate Plane
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Chapter 10 Section 10-1
• Objective: At the end of the lesson, students will be able to• Locate a point on the coordinate
plane•Graph points on the coordinate plane•Graph vertical and horizontal lines on
the coordinate plane
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Chapter 10 Section 10-1
• Agenda–Anticipation Guide-Before column–Vocabulary–Examples–Practice–Classwork/Homework–Anticipation Guide-After column
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Vocabulary
• Coordinate Plane – a grid formed by a horizontal number line called the x-axis intersecting with a vertical number line called the y-axis
• The lines are perpendicular to each other
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Vocabulary
• x-axis – horizontal number line
• y-axis - vertical number line
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Vocabulary
• Origin – O indicates the origin, where the axes intersect
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Vocabulary
• Ordered Pair (x,y) – gives the coordinates of the location of a point
• The ordered pair (0,0) indicates the origin O
• Ordered pairs look like: (2,3)– The first component is the x value and the second
component is the y value– They are always separated by a comma and
enclosed within parentheses
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Writing Coordinates Example
A(-2, 2)
B(-3, -2)
Locate the coordinates of points A and B
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Vocabulary
• x-coordinate – the first number in an ordered pair
• It tells the number of horizontal units a point in from O
• y-coordinate – the second number in an ordered pair
• It tells the number of vertical units a point in from O
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Vocabulary
• Quadrants – the x- and y- axes divide the coordinate plane into four quadrants
1
3
2
4
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Graphing a Point Example
• Graph point A(3, -4)• Graph point B(3, 4)• Graph point C(-3, -4)• Graph point D(-3, 4)
• What quadrant is each point located?
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Graphing a Point – More Examples
• Graph point w(0, 0)• Graph point x(0, -2)• Graph point y(3, 0)• Graph point z(-1, 4)
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Vocabulary
• Horizontal – lines that are parallel to the x-axis
• Vertical – lines that are parallel to the y-axis
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Indentifying Horizontal and Vertical Lines
• Graph the line containing points (-3,3) and (-3, 2)
• Graph the line containing points (3, 2) and (-1, 2)
• Which line is horizontal?• Which line is vertical?
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Indentifying Horizontal and Vertical Lines
• Graph the line containing points (-4,3) and (-4, -2)
• Graph the line containing points (3, 1) and (-1, 1)
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You Do• In your textbook–Page 524 numbers 1-12, 13-24
even, 26, & 28
• Anticipation Guide – After Column
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Conclusion• We learned how to–Locate a point on the coordinate plane–Graph points on the coordinate plane–Graph vertical and horizontal lines on
the coordinate plane
• Tomorrow we will begin to use plotting points and lines to begin a project