A line L1 passes through point A, with position vector , and the point B, with position vector .

a) Write down equation for line L1

i got the equation of line L1 as: :

A second line L2 has equation:

b) Show that L1 and L2 are perpendicular to each other.

c) Show that the two lines meet, and find the position vector of th epoint of inersection.

I need help with parts (b) and (c) assuming my part (a) is correct.

Thank You