Given a straight line BD where point E lies on it.

Coordinates and

Find the coordinates of D given that and the equation of the line BD is

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- May 2nd 2010, 11:41 PMPunchCoordinate geometry
Given a straight line BD where point E lies on it.

Coordinates and

Find the coordinates of D given that and the equation of the line BD is - May 3rd 2010, 03:18 AMSoroban
Hello, Punch!

Was that the original wording of the problem?

It's written very badly.

Quote:

Given points and

Find the coordinates of point D so that

Code:`½`

B(½,3)o - +

\ :

d \ : 2

\:

E(1,1)o - - - +

\ :

\ :

\ :

3d \ :

\ :

\ :

\:

D o

Going from to , we moved unit right and 2 units down.

. . And we moved a diagonal distance

Going from to , we want to move a diagonal distance

. . Hence, we mustour previous moves.*triple*

From , we move units right and 6 units down.

Therefore, point is: .

- May 3rd 2010, 05:42 AMmrmohamed
- May 3rd 2010, 06:49 AMPunch
- May 3rd 2010, 07:13 AMSoroban
Hello, mrmohamed!

Quote:

What about Point D (-1/2 , 7 )?

That point is also correct . . . Good work!

Silly me . . . I assumeddistances,*directed*

. . as in .

- May 3rd 2010, 07:47 AMmrmohamed
HI all

http://i69.servimg.com/u/f69/12/89/99/77/almonk12.jpg

with my best wishes

mrmohamed - May 4th 2010, 04:31 AMPunch
Thanks! but in the solution sheet shows only point is: and the marks allocated to this question is probably only 2-3... judging from the long workings, perhaps your working is a more elaborated one compared to what is required of me?