MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12
        

If the image of a point (4,-6) by a line mirror to be(2,1) then the equation of the line mirror is...................

10 years ago

Answers : (1)

pratham ashish
9 Points
							Hi,

if  v will join these two pts , line joining these points will be perpendicular to mirror ,

more over the mirror will be equidistnt frm both points , hence will be passing through the mid point of the line joining these.


mid pt = {(4+2)/2, (-6+1)/2} = (3, -5/2)

slope =  -1/m    where m = slope of line joing pts

      =  -{4-2/-6-1}= 2/7

 now eqn =>  y-1=2/7*(x-2) 
         
             7y -2x -3=0



						
10 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 53 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details