Question

find the equation of the line joining the points (-7,6,-3) and (7,-6,3)

Answer 1

let
A(-7 ,6, -3) ,B(7,-6,3)
DIRECTION RATIOS OF AB = ( -7-7, 6-(-6) , -3-3)
                                               =(-14 , 12, -6)
                                               =( 7, -6 ,3) OR (-7,6,-3
 THE EQUATION OF  LINE IS = 7 ( X -7) -6( Y+6) +3(Z-3)
                                                 = 7X-49-6Y-36+3Z-9
                                                 =7X-6Y+3Z-94=0 OR  -7X+6Y-3Z+94 =0