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Use All 4 Quadrants of the Coordinate Plane
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What you will learn from this videoWhat you will learn
- We’ll learn how to plot points in all four quadrants of the coordinate plane.
- We will also learn how to measure the lengths of LINES on the coordinate plane.
- And we'll see how this knowledge can help us go to an amusement park, plan a trip, and even design a board game!
- Discussion Questions
Before Video
Why does order matter when you use ordered pairs of numbers?ANSWERThe order is important because it provides one specific location in the coordinate plane.
Move 3 units to the right of the origin on the x-axis and up 4 units on the y-axis.
The origin is the point where the x-axis and y-axis intersect.
(0, 0)
0
After Video
Describe how to locate the point (–9, 7) on the coordinate grid.ANSWERBegin at the origin, move left 9 units on the x-axis, and then move up 7 units on the y-axis.
(–3, 5) and (6, 5)?
ANSWERGraph the two points on a coordinate plane and count the number of units between the x-coordinates (add the absolute values), or subtract the smaller x-coordinate from the larger x-coordinate (6 – (–3) = 9).
(–1, 1)
A vertical line
28 square units
- Vocabulary
- Coordinate plane DEFINE
A grid that contains two number lines that intersect at a right angle at 0 and divide the plane into four quadrants.
- Origin DEFINE
The point where the two axes of a coordinate grid intersect; the point is represented by the ordered pair (0, 0).
- Ordered pair DEFINE
The location of a point on a coordinate plane written as (x, y).
- x-axis DEFINE
The horizontal number line on a coordinate grid.
- y-axis DEFINE
The vertical number line on a coordinate grid.
- x-coordinate DEFINE
The first number in an ordered pair, which names the distance to the right or left from the origin along the x-axis.
- y-coordinate DEFINE
The second number in an ordered pair, which names the distance up or down from the origin along the y-axis.
- Absolute value DEFINE
The distance a number is from 0 on the number line.
- Coordinate plane DEFINE
- Reading Material
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
- Teacher Guide