Question

Equation of a circle with ends of diameter at (-3,2) and (5,-6) is :

Answer 1

@hartnn @waterineyes I have no clue about this one........

Answer 2

that is simple.

Answer 3

mid-point is centre

Answer 4

Find the distance between and divide it by 2 to find radius..

Answer 5

distance between the two points = diameter =2r

Answer 6

Do you know how to find midpoint or not??

Answer 7

I know nothing lol but i am going to give you a tutorial on Conic section soon promise :D

Answer 8

@waterineyes noooooooo

Answer 9

u don't know how to find mid-point ? thats news...
just take the average of co-ordinates.

Answer 10

x+y/2 but x1 or x2

Answer 11

for x-coordinate of midpoint, u take average of x-coordinates of endpoints

Answer 12

(-3+5)/2

Answer 13

Sorry net stopped working..

Answer 14

And I think your mind too.. @hba

Answer 15

\[Midpoint(x,y) = (\frac{x_1 +x_2}{2}, \frac{y_1+y_2}{2})\]

Answer 16

@waterineyes Yeah right lol and [Math processing error ]


Anyways @hartnn I remember (x,y)=(x1+x2/2,y1+y2/2)

Answer 17

@waterineyes I cannot see latex

Answer 18

so whats the midpoint ? centre

Answer 19

(x,y)=(1,-2)

Answer 20

thats correct centre

Answer 21

now find radius

Answer 22

Just refresh your page then..

Answer 23

So i use the old radius formula ?

Answer 24

\[r=\sqrt{g^2+f^2-c}\]

Answer 25

@waterineyes @hartnn Do you have a better way ?

Answer 26

not that, can u find distance between two points ?

Answer 27

What are you doing man??

Use distance formula..

Answer 28

Yeah

Answer 29

Distance between points (x1,y1) and (x2,y2) is
\(\huge d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\)

Answer 30

\[Distance = \sqrt{(x_2-x_1)^2 - (y_2-y_1)^2}\]

Answer 31

\[d=\sqrt{(x2-x1)^2+(y2-y1)^2}\]

Answer 32

lol

Answer 33

Written three times but used not atleast once..

ha ha ha..

Answer 34

lol :P

Answer 35

\[d=8\sqrt{2}\]

Answer 36

what next ?

Answer 37

radius = d/2

Answer 38

@hartnn ?

Answer 39

commented

Answer 40

This you have got is length of Diameter..
You have to find radius so you will half it..

Answer 41

r=4root(2)

Answer 42

yup... u know what to do from now....