Question 4
Find the coordinates of the point on y-axis which is nearest to the point ( 2, 5).
Let A( 2, 5)
Since the required point is in y-axis,
its x coordinate will be zero
Let Required point = B (0, a)
We need to find coordinates of point B such that distance AB is minimum
Finding AB
Finding AB
x1 = 2 , y1 = 5
x2 = 0 , y2 = a
AB = (( 2 1)2+( 2 1)2)
= (( 0 ( 2))2+( 5)2)
= ((2)2+( 5)2)
= ((6)2+( 5)2)
Now, AB is least when a 5 = 0
i.e. a = 5
So, coordinate of required point = (0, 5)
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.
Hi, it looks like you're using AdBlock :(
Displaying ads are our only source of revenue. To help Teachoo create more content, and view the ad-free version of Teachooo... please purchase Teachoo Black subscription.
Please login to view more pages. It's free :)
Teachoo gives you a better experience when you're logged in. Please login :)
Solve all your doubts with Teachoo Black!
Teachoo answers all your questions if you are a Black user!