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Coordinate Geometry

Punjab Board · Class 9 · Mathematics

Flashcards for Coordinate Geometry — Punjab Board Class 9 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.

45 questions25 flashcards5 concepts

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Card 1Understanding Coordinates and Quadrants

Find the coordinates of a point that is 5 units to the right of the y-axis and 3 units above the x-axis.

Answer

Step 1: Identify the x-coordinate - distance from y-axis along x-axis = 5 (positive, since right of y-axis) Step 2: Identify the y-coordinate - distance from x-axis along y-axis = 3 (positive, since a

Card 2Understanding Coordinates and Quadrants

Point A is at (-4, 2). What is its position relative to the axes?

Answer

Step 1: Check x-coordinate = -4 (negative) → 4 units to the LEFT of y-axis Step 2: Check y-coordinate = +2 (positive) → 2 units ABOVE x-axis Step 3: Determine quadrant: (-,+) = Quadrant II Answer: Poi

Card 3Understanding Coordinates and Quadrants

What are the coordinates of the origin O in the Cartesian plane?

Answer

The origin is the point where the x-axis and y-axis intersect. Step 1: Distance from x-axis = 0 Step 2: Distance from y-axis = 0 Step 3: x-coordinate = 0, y-coordinate = 0 Answer: The coordinates of o

Card 4Understanding Coordinates and Quadrants

Plot and identify the quadrant for each point: P(6, 4), Q(-3, 5), R(-2, -4), S(5, -3)

Answer

Step 1: Point P(6, 4): x > 0, y > 0 → Quadrant I Step 2: Point Q(-3, 5): x < 0, y > 0 → Quadrant II Step 3: Point R(-2, -4): x < 0, y < 0 → Quadrant III Step 4: Point S(5, -3): x > 0, y < 0 → Quadrant

Card 5Points on Coordinate Axes

Which points lie on the x-axis? (3, 0), (0, 2), (-5, 0), (0, -4), (7, 0)

Answer

Step 1: For a point to lie on the x-axis, its y-coordinate MUST be 0 Step 2: Check each point: - (3, 0): y = 0 ✓ ON x-axis - (0, 2): y = 2 ✗ Not on x-axis - (-5, 0): y = 0 ✓ ON x-axis - (0, -4

Card 6Points on Coordinate Axes

Identify which points lie on the y-axis: (0, 6), (4, 0), (0, -3), (-2, 5), (0, 0)

Answer

Step 1: For a point to lie on the y-axis, its x-coordinate MUST be 0 Step 2: Check each point: - (0, 6): x = 0 ✓ ON y-axis - (4, 0): x = 4 ✗ Not on y-axis - (0, -3): x = 0 ✓ ON y-axis - (-2, 5

Card 7Understanding Coordinates and Quadrants

The distance of point M from the y-axis is 7 units and from the x-axis is 4 units. Point M is in Quadrant III. What are its coordinates?

Answer

Step 1: Distance from y-axis = 7 units → |x-coordinate| = 7 Step 2: Distance from x-axis = 4 units → |y-coordinate| = 4 Step 3: Determine signs using quadrant: - Quadrant III has signs (-,-) - x-c

Card 8Understanding Coordinates and Quadrants

A point has coordinates (a, b) where a < 0 and b > 0. In which quadrant does it lie? Give an example point.

Answer

Step 1: Analyze the signs: - x-coordinate (a) is negative (< 0) - y-coordinate (b) is positive (> 0) Step 2: Match with quadrant sign patterns: - Quadrant I: (+,+) - Quadrant II: (-,+) ✓ MATCH

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Frequently Asked Questions

What are the important topics in Coordinate Geometry for Punjab Board Class 9 Mathematics?
Key topics in Coordinate Geometry include Coordinate Geometry – Complete Chapter Mind Map, This flowchart shows why one piece of information is insufficient to locate a point, but two pieces of information uniquely determine its location., Mind map showing the components and structure of the Cartesian coordinate system.. These are the concepts Punjab Board Class 9 examiners draw on most — study them first, then practise related questions.
How to score full marks in Coordinate Geometry — Punjab Board Class 9 Mathematics?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for Coordinate Geometry?
There are 25 flashcards for Coordinate Geometry covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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