ANSWER KEYS - Teacher Use Only

Coordinate Plane | Grade 5

Student Concept Worksheet Answers
1
a) (3, 5) b) (6, 2) c) (4, 0)
a) 3 right, 5 up = (3, 5). b) 6 right, 2 up = (6, 2). c) On x-axis means y = 0, so (4, 0)
2
a) right 1, up 7 b) right 5, up 0
a) (1, 7): go right 1, then up 7. b) (5, 0): go right 5, then up 0 (stays on x-axis)
3
x-coordinate = 8, y-coordinate = 3
In (8, 3), the first number (8) is the x-coordinate, the second number (3) is the y-coordinate.
Practice Worksheet Answers

Part A: Identify Parts

# Question Answer
1Point (0, 0)origin
2Horizontal number linex-axis
3Vertical number liney-axis
4Pair like (3, 5)ordered pair

Part B: Plot the Points

Verify students plotted correctly:

Point Coordinates Location Check
A(3, 5)3 right, 5 up
B(7, 2)7 right, 2 up
C(0, 6)On y-axis, 6 up
D(4, 0)On x-axis, 4 right
E(8, 8)8 right, 8 up
F(1, 4)1 right, 4 up

Part C: Read the Coordinates

# Point Answer
11G(4, 5)
12H(2, 2)
13J(7, 0)
14K(0, 6)
15L(6, 3)

Challenge Questions:

#16: Rectangle vertices: A(1,1), B(1,4), C(6,4), D(6,1). Side AB = 3 units (vertical). Side BC = 5 units (horizontal).

#17: a) Yes, both have y = 5, so they're on the same horizontal line. b) Distance = 6 - 2 = 4 units apart.

FAST Practice Quiz Answers
1
B) 4 units to the right of the origin, 7 units up
(4, 7) means x = 4 (right) and y = 7 (up). Always go right first (x), then up (y).
2
B) (5, 4)
Point P is at x = 5, y = 4. Going 5 right and 4 up from origin.
3
C) origin
The point (0, 0) where the x-axis and y-axis intersect is called the origin.
4
Select: (3, 0), (7, 0), and (0, 0)
(3, 0) - on x-axis (y = 0)
(0, 5) - on y-axis, not x-axis
(7, 0) - on x-axis (y = 0)
(0, 0) - the origin is on both axes
(4, 2) - not on any axis
5
B) They are on the same horizontal line
Both points have y = 6, meaning they're on the same horizontal line. They're 6 units apart (8 - 2 = 6), not 14.
6
C) Move 3 units right, then 8 units up
For (3, 8): x = 3 means go right 3, y = 8 means go up 8. Always x first (right), then y (up).
FAST Quiz Scoring Guide
Score Interpretation Recommended Action
6/6 Mastery Ready for extension activities like plotting shapes or finding distances between points.
4-5/6 Approaching Mastery Review any errors. Common issue: reversing x and y. Practice with "right first, then up."
2-3/6 Developing Reteach with physical grid. Have student walk coordinates. Use mnemonic consistently.
0-1/6 Needs Intervention Small group instruction. Start with basic axis identification. Build up to plotting one coordinate at a time.