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The Coordinate Plane: Practice Questions with Answers

Curriculum: The Coordinate PlaneGrades: 6–8Questions: 12Mode: Practice

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1. What is the point where the x-axis and y-axis meet called?

  1. Origin
  2. Coordinate
  3. Quadrant
  4. Axis pair
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Answer: A. Origin
The origin is the fixed starting point of the coordinate plane, located at (0, 0), where the x-axis and y-axis cross.

2. In the ordered pair (3, 5), which number tells you how far to move along the x-axis?

  1. 8
  2. 15
  3. 3
  4. 5
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Answer: C. 3
In an ordered pair (x, y), the first number is always the x-coordinate, which tells how far to move left or right along the x-axis.

3. What is the horizontal number line on a coordinate plane called?

  1. x-axis
  2. quadrant line
  3. y-axis
  4. origin
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Answer: A. x-axis
The x-axis is the horizontal number line that runs left to right through the coordinate plane.

4. What is the vertical number line on a coordinate plane called?

  1. x-axis
  2. origin
  3. y-axis
  4. ordered pair
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Answer: C. y-axis
The y-axis is the vertical number line that runs up and down through the coordinate plane.

5. An ordered pair is always written in what order?

  1. (larger, smaller)
  2. (y, x)
  3. (x, y)
  4. (positive, negative)
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Answer: C. (x, y)
By convention, an ordered pair always lists the x-coordinate first, followed by the y-coordinate, written as (x, y).

6. Which point is located at the origin?

  1. (1,1)
  2. (1,0)
  3. (0,1)
  4. (0,0)
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Answer: D. (0,0)
The origin is the starting point of the coordinate plane, and its coordinates are (0, 0) since it requires no movement from itself.

7. How many quadrants does a coordinate plane have?

  1. 4
  2. 2
  3. 6
  4. 3
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Answer: A. 4
The x-axis and y-axis divide the coordinate plane into four regions called quadrants, numbered I, II, III, and IV.

8. In which quadrant are both coordinates positive?

  1. Quadrant III
  2. Quadrant II
  3. Quadrant IV
  4. Quadrant I
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Answer: D. Quadrant I
Quadrant I is the upper-right region of the coordinate plane, where every point has a positive x-coordinate and a positive y-coordinate.

9. What is the y-coordinate of the point (7, -2)?

  1. 7
  2. -2
  3. 2
  4. -7
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Answer: B. -2
In the ordered pair (7, -2), the second number, -2, is the y-coordinate, which tells the vertical position of the point.

10. Starting at the origin, moving right 4 and up 2 lands on which point?

  1. (-4,2)
  2. (2,4)
  3. (4,2)
  4. (4,-2)
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Answer: C. (4,2)
Moving right increases the x-coordinate and moving up increases the y-coordinate, so moving right 4 and up 2 from the origin lands on (4, 2).

11. Which of these is a correctly written ordered pair?

  1. 3,4
  2. (3, 4)
  3. [3,4]
  4. (3;4)
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Answer: B. (3, 4)
An ordered pair is written inside parentheses with the two numbers separated by a comma, like (3, 4).

12. What do we call the two numbers used to locate a point on a coordinate plane?

  1. An axis
  2. A quadrant
  3. An ordered pair
  4. An origin
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Answer: C. An ordered pair
The two numbers that pinpoint a location on the coordinate plane, written as (x, y), are called an ordered pair.
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