Page 54 - Math Course 1 (Book 1)

Graph: Points and Algebraic Relationships

Mo. 1

Lesson 10
Let’s Begin

KEY CONCEPTS:
1. Graph points on a coordinate plane.
2. Graph algebraic relationships
Write Ordered Pairs

MO. 1 - L10a Examples

Graph Points on a
Coordinate Plane

Write the ordered pair that names the point P.
Vocabulary A-Z The x-coordinate is 4.
The y-coordinate is –2.
Let us learn some vocabulary

Quadrants

The x-axis and the y-axis separate the coordinate
plane into four regions, called quadrants.

I - The coordinates y
are (positive and I
positive) II 4
3
II - The coordinates
are (negative and 2
positive) 1
0 Answer The ordered pair is (4, –2)
III - The coordinates -4 -3 -2 -1 1 2 3 4
are (negative and -1 x
negative) -2 Write the ordered pair that names the point Q.

IV - The coordinates III -3 IV The x-coordinate is –3.
are (positive and -4 The y-coordinate is –1.
negative)

x - axis
y
(-2, 4) y - axis
4
(1, 3)
3 Origin
2 Quadrant I
1 Quadrant II
0
-4 -3 -2 -1 1 2 3 4 Quadrant III
-1 x
-2 Quadrant IV
-3 Ordered pair Answer
-4 The ordered pair is (4, –2)
(x, y)

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