WBBSE Class 9 Maths Algebra Chapter 2 Graph Multiple Choice Questions

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WBBSE Class 9 Maths  Algebra Chapter 2 Graph Multiple Choice Questions

Example 1. The graph of the equation 2x + 3 = 0 is

  1. Parallel to X-axis
  2. Parallel to Y-axis
  3. Not parallel to any axis
  4. Passing through origin

Solution: The correct answer is 2. parallel to Y-axis

⇒ x = constant is parallel to Y-axis.

The graph of the equation 2x + 3 = 0 is constant is parallel to Y-axis.

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Example 2. The graph of the equation ay + b = 0, (a, b are constants) is

  1. Parallel to X-axis
  2. Parallel to y-axis
  3. Not parallel to any axis
  4. Passing through origin

Solution: The correct answer is 1. parallel to X-axis

⇒ Y = const is parallel to X-axis.

The graph of the equation ay + b = 0, (a, b are constants) is const is parallel to X-axis.

Example 3. The graph of the equation 2x + 3y = 0 is

  1. Parallel to X-axis
  2. Parallel to Y-axis
  3. Passing through the origin.
  4. Passing through (2, 0)

Solution: The correct answer is 3. not parallel to any axis

⇒ ax + by = 0 is passing through origin as a·0 + b·0 = 0

The graph of the equation 2x + 3y = 0 is Passing through the origin.

Example 4. The graph of the equation cx + d = 0 (c & d are constants c ≠ 0) will be Y-axis when

  1. d = -c
  2. d = c
  3. d = 0
  4. d = 1

Solution: The correct answer is 3. d = 0

⇒ The equation of Y-axis is X = 0

WBBSE Class 9 Maths Algebra Chapter 2 Graph Multiple Choice Questions

 

 

 

 

 

 

 

 

 

 

Example 5. The graph of the equation ay + b = 0, (a, b are constants, a ≠ 0) will be X-axis, when

  1. b = a
  2. b = -a
  3. b = 2
  4. b = 0

Solution: The correct answer is 4. b = 0

⇒ The equation of the X axis is Y = 0

Example 6. (-2,-3) lies in the

  1. 1st quadrant
  2. 2nd quadrant
  3. 3rd quadrant
  4. 4th quadrant

Solution: The correct answer is 3. 3rd quadrant

⇒ (-,-) lies in the 3rd quadrant.

Example 7. The type of straight line is represented by y = 2 is

  1. Parallel to X axis
  2. Parallel to Y axis
  3. Passing through origin
  4. None of these

Solution: The correct answer is 1. parallel to X axis

Example 8. The value of abscissa of each point on the Y-axis

  1. 0
  2. 1
  3. Constant
  4. None of these

Solution: The correct answer is 1. 0

The value of abscissa of each point on the Y-axis 0.

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Example 9. Distance of the point (q) from X axis is

  1. q unit
  2. p unit
  3. \(\sqrt{p^2 \times q^2}\) unit
  4. None of these

Solution: The correct answer is 1. q unit

⇒ Value of ordinate is the distance from X axis.

Distance of the point (q) from X axis is q unit

Example 10. The distance between the two points (4, 0) and (-6, 0) is

  1. 10 units
  2. 4 units
  3. 6 units
  4. None of these

Solution: The correct answer is 1. 10 units

⇒ Required distance (x1 – x2) units

= (4 – 6) units = 10 units

The distance between the two points (4, 0) and (-6, 0) is 10 units

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