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Problem #21 · August 17, 2026

Modul

Sonlar oʻqida A(−5)A(-5) nuqtadan BB nuqtagacha boʻlgan masofa 99 ga teng. BB nuqtaning musbat koordinatasini toping.
  1. A4
  2. B14
  3. C9
  4. D-14
  5. E-4

Solution

Masofa sharti: ∣b−(−5)∣=∣b+5∣=9|b - (-5)| = |b + 5| = 9. Bundan b+5=9b + 5 = 9 yoki b+5=−9b + 5 = -9, yaʼni b=4b = 4 yoki b=−14b = -14. Savolda musbat koordinata soʻralgan, demak b=4b = 4.
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