7th Grade Math

82 Integers

When locating an ordered pair, moving right or up on a coordinate

plane is in the positive direction. Moving left or down is in the

negative direction.

Naming Points Using Ordered Pairs

Write the ordered pair that corresponds to point D. Then state

the quadrant or axis on which the point is located.

• Start at the origin. y

123 x

%

$

#

"

45

2

3

4

5

1

• 2


• 3


• 4


• 5


• 5 - 4 - 3 - 2 - 10


• Move left on the x-axis to find
  the x-coordinate of point D,
  which is -4.


• Move up to find the y-coordinate,
  which is 2.
  So, point D corresponds to the ordered
  pair (-4, 2). Point D is located in
  Quadrant II.

Write the ordered pair that corresponds to each point. Then state

the quadrant or axis on which the point is located.

a. A b. B c. C

Graph an Ordered Pair

Graph and label point K at (2, -5) on a coordinate plane.

,

y

0 x

Start at the origin. The

x-coordinate is 2. So,

move 2 units to the right.

Next, since the y-coordinate is

• 5, move 5 units down. Draw
  a dot and label K.

Graph and label each point on a coordinate plane.

d. L(-4, 2) e. M(-5, -3) f. N(0, 1)

Scale When no numbers

are shown on the x- or

y-axis, you can assume

that each square is 1 unit

long on each side.

076_085_C2L1_895130.indd 82 12/29/09 12:43 PM