Line L passes through the points (-2,0) and (0,a). Line LL passes through the points' (4,0) and (6,2). What value of "a" makes the two lines parallel?

Question

anonymous · Answer

i'm sorry, but how is it you have -2, a-0 on your solution ?

anonymous · Answer

the value of a must be 2 not -2.. if it is -2, they will meet at one point..

anonymous · Answer

i'm also wondering why is it -2, cause when you subtract (0,a) - (-2,0) .. it will be positive 2, a-0... hehe

anonymous · Answer

my mistake :0

anonymous · Answer

haha.. its ok.
by the way, where did you get -1 in equation 2, 2 = -1(-2, a-0)

hehe .. sorry for many questions, i just don't get it quickly. tnx

anonymous · Answer

then 2 must be the value of a... do i deserve a medal? heheheh

anonymous · Answer

thanks much

anonymous · Answer

haha .. of course!

anonymous · Answer

maybe I should go around asking for medals too

anonymous · Answer

ok. thanks by the way :)