Question 22 - NCERT Exemplar - MCQ - Chapter 7 Class 10 Coordinate Geometry

Last updated at Dec. 16, 2024 by Teachoo

If the distance between the points (4, p) and (1, 0) is 5, then the value of p is

(A) 4 only

(B) ± 4

(C) – 4 only

(D) 0

Transcript

Question 22 If the distance between the points (4, p) and (1, 0) is 5, then the value of p is (A) 4 only (B) ± 4 (C) – 4 only (D) 0 Given Distance between (4, p) and (1, 0) = 5 √(( 𝟏 −𝟒)𝟐+(𝟎−𝒑)𝟐) = 5 √(( −3)2+(−𝑝)2) = 5 √(9+𝑝^2 ) = 5 Squaring both sides 𝟗+𝒑^𝟐=𝟐𝟓 𝑝^2=25−9 𝑝^2=16 Taking square root 𝑝=±√16 𝑝=±√(4^2 ) 𝒑=±𝟒 So, the correct answer is (B)

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo

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