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MATHS Assertion (A) & Reason (B) MCQ

Introduction to Coordinate Geometry [NEW] · Gujarat Board (GSEB) STD 8 (GSEB - English Medium). 4 questions.

Questions

Assertion (A) & Reason (B) MCQ

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4 questions · timed · auto-graded

MCQ 11 Mark
Assertion (A): Both (3, 0) and (-3, 0) lie on the x-axis.
Reason (R): Every point on the x-axis has its y-coordinate zero.
  • A
    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • B
    Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
  • C
    Assertion (A) is true but Reason (R) is false.
  • D
    Assertion (A) is false but Reason (R) is true.
Answer
A : Both A and R are true and R correctly explains A.
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MCQ 21 Mark
Assertion (A): A point lying in the first quadrant has positive values of both the abscissa and the ordinate.
Reason (R): (3, 5) lies in the first quadrant while (-3,-5) lies in the fourth quadrant.
  • A
    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • B
    Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
  • C
    Assertion (A) is true but Reason (R) is false.
  • D
    Assertion (A) is false but Reason (R) is true.
Answer
B : Both A and R are true but R does not explain A.
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MCQ 31 Mark
Assertion (A): A point with coordinates (-5, 2) lies below the x-axis.
Reason (R): A point with negative x-coordinate lies to the left of the y-axis and a point with negative y-coordinate lies below the x-axis.
  • A
    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • B
    Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
  • C
    Assertion (A) is true but Reason (R) is false.
  • D
    Assertion (A) is false but Reason (R) is true.
Answer
D : A point with coordinates (-5, 2) has positive y-coordinate and so it lies above the x-axis. Thus, A is false. But R is true.
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MCQ 41 Mark
Assertion (A): A point P with coordinates (2, -4) is 2 units away from the x-axis.
Reason (R): The ordinate denotes the distance from the x-axis.
  • A
    Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • B
    Both Assertion (A) and Reason (R) are true and Reason (R) is not the correct explanation of Assertion (A).
  • C
    Assertion (A) is true but Reason (R) is false.
  • D
    Assertion (A) is false but Reason (R) is true.
Answer
D : A point P with coordinates (2,-4) is 2 units away from the y-axis. So, A is false. But R is true.
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