Advertisements
Advertisements
Question
Statement (1): For the point P, ๐ฅ = −4 and ๐ฆ = 3, the distance of P from origin is 3 + 4 = 7.
Statement (2): P = (−4, 3) and its distance from origin \[= \sqrt{(-4)^2 + (3)^2}\].
Options
Both the statements are true.
Both the statements are false.
Statement 1 is true, and statement 2 is false.
Statement 1 is false, and statement 2 is true.
MCQ
Advertisements
Solution
Statement 1 is false, and statement 2 is true.
Explanation:
- Statement (1): Distance in a coordinate plane is Euclidean straight-line distance given by \(\sqrt{x^2 + y^2}\), not the arithmetic sum of the coordinates. For P(-4, 3), the actual distance from the origin is \[\sqrt{(-4)^2 + 3^2} = \sqrt{16 + 9} = 5\text{ units}\], not 7. Hence, Statement (1) is false.
- Statement (2): By the distance formula, the distance of any point (x, y) from the origin (0, 0) is \[\sqrt{(x - 0)^2 + (y - 0)^2} = \sqrt{x^2 + y^2}\]. For P(-4, 3), this is correctly written as \[\sqrt{(-4)^2 + (3)^2} = 5\]. Hence, Statement (2) is true.
shaalaa.com
Is there an error in this question or solution?
