find the point on the x–axis which is equidistant from (2,–5)and(–2,9).
Answers
Step-by-step explanation:
According to the question we have A(2,−5) and B(−2,9) Let the points be P(x,0). So, AP=PB and AP2=PB2 ⇒(x−2)2+(0+5)2 = (x+2)2+(0−9)2 ⇒x2+4−4x+25=x2+4+4x+81 ⇒x2+29−4x=x2+85+4x ⇒−4x−4x=85−29 ⇒−8x=56 ⇒x=−7 Hence, point on the x-axis which is equidistant from (2,−5) and (−2,9) is (−7,0).Read more on Sarthaks.com - https://www.sarthaks.com/2428/find-the-point-on-the-x-axis-which-is-equidistant-from-2-5-and-2-9
Given,
The points are (2,-5) and (-2,9).
To find,
The point on the x-axis which is equidistant from the two given points.
Solution,
Now,the point is on x-axis,so the value 'y' of the given point will be zero.
Let,the value of the 'x' value of the given point = x
[Assume,x as a variable to do the further mathematical calculations.]
So,the point is = (x,0)
As mentioned in the question,the two points are equidistant from (x,0).
So,
Distance between (x,0) and (2,-5)
= ✓(x-2)²+(0+5)²
Distance between (x,0) and (-2,9).
=✓(x+2)²+(0-9)²
Now,the points are equidistant.
So,
✓(x-2)²+(0+5)² = ✓(x+2)²+(0-9)²
(x-2)²+(0+5)² = (x+2)²+(0-9)²
x²-4x+4+25 = x²+4x+4+81
x²-4x-x²-4x = 4+81-4-25
-8x = 56
x = -7
Hence,the point on x-axis is (-7,0).
Hope it will helps you ❤️