- #1
Peter G.
- 442
- 0
Hi,
I am a bit confused... I don't understand what is happening, I can't picture it:
Find a vector equation for the line passing through the point 4,3 and parallel to the vector i - 2j.
If r = p +t (q-p)
I only have one point, how can I use the fact it is parallel to help me? Point Q must be as such that the dot product of q - p and i - 2j must equal the magnitude of q - p * the magnitude of i - 2j?
Any help is appreciated
Thanks,
Peter
I am a bit confused... I don't understand what is happening, I can't picture it:
Find a vector equation for the line passing through the point 4,3 and parallel to the vector i - 2j.
If r = p +t (q-p)
I only have one point, how can I use the fact it is parallel to help me? Point Q must be as such that the dot product of q - p and i - 2j must equal the magnitude of q - p * the magnitude of i - 2j?
Any help is appreciated
Thanks,
Peter