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That is the triangle given to me. I did not draw my own.

This is my working out.

i agree that L = (2,4) and BL = sqrt(10)

I put the x coordinate into the equation for line AL and it said when x=1 y would equal 2

The equation I put it into was x-3y+5=0

looks like that is your problem

textbooks are sometimes wrong, i'm afraid

(but so am i sometimes!)

have you checked my calculations ?

Will do that now. :)

i used decimals when i can - I hate fractions!

I can't quite see what you did with the equation y-y1=m(x-x1) , why plug in H ?

I plugged in A (-2,1)

Aha! Oh I see.

Ok, I think I understand now and see where I went wrong. Thank you very much for your help!

yw

Very interesting. Oh well I guess your right, the book won't always be right!

anyway gotta go
good luck with your studies

Oh! No, I have not done vectors yet.

Ok so I got L incorrect then?

Thanks!

ah I assumed that it bisected the base as well. I don't know why!!???

my only excuse is that i'd just got up!