.... wrote:
> On Tue, 01 Apr 2008 03:43:57 GMT, Elmer <nylicens@[EMAIL PROTECTED]
>
> wrote:
>
>> ... wrote:
>>> On Tue, 01 Apr 2008 02:44:25 GMT, Elmer <nylicens@[EMAIL PROTECTED]
>
>>> wrote:
>>>
>>>> Trying to help a friend working on a GED test, they ran into a
question using
>>>> the distance formula. The length of the line was given as were 3 of
its 4
>>>> coordinates, and the problem was to find the unknown point.
>>>>
>>>> Graphing it out was easy, but is there a way to do it strictly using
the
>>>> distance formula?
>>> I'll assume you're talking about the distance formula
>>>
>>> d^2 = (x2 - x1)^2 + (y2 - y1)^2
>>>
>>> You say you're given values for all the variables except for one.
>>> So, plug in the numbers and solve for the one unknown that remains.
>>>
>> Hmm, I tried to do that but kept running into the problem of squaring
(-6-y1)^2.
>>
>> My solution of 36-12y+y^2 seemed too wrong, right?
>
> You got a sign wrong.
>
> (-6 - y)^2 = 36 + 12y + y^2
Well obviously I haven't a clue how to solve 12y+y^2=28.
That's why I kept thinking I was way wrong. Sheest!
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