MCQ
Every point on a number line represents:
  • A
    a unique real number.
  • B
    a natural number.
  • C
    a rational number.
  • D
    an irrational number.

Answer

  1. a unique real number.
    Solution:
    On number line, we have $-\infty$ to $\infty$ numbers, consisting $-\infty...-4,-3,-2,-1,0,1,2,3,4...\infty,$ 1.12,1.14 and 1.41406532, 3.146201286295... etc. That means on number line, there are natural nmbers (1, 2, 3, 4 ...), integers, rational numbers $\frac{1}{2},\frac{1}{3},1.3333,$ irrational numbers 1.4148625385...
    But if we see every number as a complete family, it becomes
    Real numbers (any number which can be represent on Real axes)
    So, every point on the number line reoresent a unique real number which contains every type.
    Hence, option (a) is correct.

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