Find the vector equation for the line of intersection of the planes and
, ,0 8, , .
i think this problem have something to do with distance of point and plane.but that is just my guess
Solve the second for x, then subs. into the first and solve for y. I got
$\displaystyle x = -1 - \frac{2}{3} z,\;\;\;y = \frac{3}{2} - \frac{1}{4} z$. If we let $\displaystyle z = - 12t $
then the line is given by
$\displaystyle \bold{r} = \left(-1,\frac{3}{2},0 \right) \;+ <8,3, -12> t$