7th Grade Math

(Marvins-Underground-K-12) #1
84 Integers

= Step-by-Step Solutions begin on page R1.
Extra Practice begins on page EP2.

Write the ordered pair corresponding to each y

0 x

+

)

(
%

&

,





#
" *

'

$

point graphed at the right. Then state the
quadrant or axis on which each point is located.

Example 1


  1. A 11. B 12. C

  2. D 14. E 1515 F

  3. G 17. H 18. I

  4. J 20. K 21. L


Example 2 Graph and label each point on a coordinate plane.


  1. M(5, 6) 23. N(-2, 10) 24. P(7, -8) 25. Q(3, 0)

  2. R(-1, -7) 27. S(8, 1) 28. T(-3, 7) 29. U(5, -2)

  3. V(0, 6) 31. W(-5, -7) 32. X(-4, 0) 33. Y(0, -5)


Example 3 34. GEOGRAPHY Use the world map.
Prime
Meridian

Prime
Meridian

Equator Equator


  • 180 ̊-150 ̊-120 ̊-90 ̊-60 ̊-30 ̊0 ̊30 ̊60 ̊90 ̊120 ̊ 150 ̊180 ̊90 ̊


0 ̊

0 ̊ 0 ̊

30 ̊
15 ̊


  • 15 ̊ -15 ̊


15 ̊

45 ̊


  • 45 ̊ -45 ̊


45 ̊


  • 30 ̊


30 ̊


  • 30 ̊


60 ̊

75 ̊
60 ̊


  • 60 ̊

    • 75 ̊




75 ̊


  • 75 ̊

    • 60 ̊




90 ̊


  • 90 ̊-180 ̊-150 ̊-120 ̊-90 ̊-60 ̊-30 ̊ 30 ̊60 ̊90 ̊ 120 ̊ 150 ̊180 ̊-90 ̊


a. The world map can be divided into a coordinate plane where (x, y)
represents (degrees longitude, degrees latitude). In what continent is
the point (30° longitude, -15° latitude) located?
b. Which of the continents is located in Quadrant II?
c. In what continent is the point (-60° longitude, 0° latitude) located?
d. Name a continent on the map that is located in Quadrant I.

Graph and label each point on a coordinate plane.

B 3535 X(1.5, 3.5) 36. Y (^) ( 3 41 , 2 21 ) 37. Z (^) (2, 1 _^23 )



  1. GEOMETRY Graph four points on a coordinate plane so that they form a
    square when connected. Identify the ordered pairs.

  2. RESEARCH Use the Internet or other resources to explain why the
    coordinate plane is sometimes called the Cartesian plane.


076_085_C2L1_895130.indd 84 12/29/09 12:44 PM

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