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
anshu dhamiwal Grade:
        if image of the point (2,1) with respect to a line mirror be (5,2), find the equation of the miror..... 
7 years ago

Answers : (3)

parth pankaj tiwary
18 Points
										

Let point (2,1) be A and (5,2) be B......... First find the equation of AB..... which i hope u can easily find.


After that the slope of the so called mirror will be -3  as mirror is always perpendicular to the image.........


After that find the midpoint of AB..........For sure this point wil lie on the mirror........Now u got slope and a point.....


its easy to find the equation now....... the answer will be 6x+2y-24=0

7 years ago
Nehal Wani
21 Points
										

Mid Point Of (2,1) and (5,2) is (7/2,3/2)


Slope of line joining (2,1) and (5,2) : 1/3


Slope of mirror line : -3


Equation of mirror line: [y-3/2]/[x-7/2]=-3


(2y-3)/(2x-7)=-3


2y-3=21-6x


2y+6x-24=0


y+3x-8=0

7 years ago
Sneha vyas
21 Points
										
First we will find the midpoint of (5,2) and (1,2),
(2+5/2 , 2+1/2)
i.e ( 7/2 , 3/2 )
Now...we will find the slope of line formed by points (5,2) and (1,2)
2-1/5-2= 
So slope is 1/3
We will find slope of line perpendicular to this line with thw slope 1/3....
So the slope of 2 perpendicular lines has a product of -1,
Hence the slope of the line is  m×1/3=-1 => m=-3
NOW,
find eq. Of line passing through point (5,2) and having a slope of -3
(y-3/2)/(x-7/2) =-3
2y-3/2x-7=-3
2y+6x=24
y=-3x+12
is the answer
I hope u get it 
ALL THE BEST!
2 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

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