Write down the equation of any line containing the point `(x_1,y_1)`.

Find the equation of the line containing the points (1,2), (3,8)

Find the equation of the plane containing the line (x+1)/-3=(y-3)/2=(z+2)/1 and the point (0,7,-7).

Show that the lines (x-1)/(2)=(y-3)/(4)=-z and (x-4)/(2)=(y-1)/(-2)=(z-1)/(1) are coplanar Also find the equation of the plane containing the lines.

Show that the lines (x+3)/-3=(y-1)/1=(z-5)/5 and (x+1)/-1=(y-2)/2=(z-5)/5 are coplanar. Also find the equation of the plane containing the lines.

Show that the lines (x-1)/2=(y-2)/3=(z-3)/4 and (x-2)/3=(y-3)/4=(z-4)/5 are coplanar. Also find the equation of the plane containing the lines.

Find the equation of the plane containing the line : (x+1)/1=(y-2)/2=(z-3)/3 and perpendicular to the plane 3 x - 2 y - z = 4.

Find the equation of the plane containing the line : (x-1)/3=(y+2)/1=(z-3)/2 and perpendicular to the plane 2x - y + 2z -3= 0.

Find the equation of the plane containing the lines (x-4)/(1)=(y-3)/(4)=(z-2)/(5) and (x-3)/(1)=(y-2)/(-4)=(z)/(5)

Find the equation of the plane containing the line : (x-1)/2=(y-2)/-1=(z-3)/4 and perpendicular to the plane x + 2y + z - 2 = 0.

Find the equation of the plane containing the line (x-2)/7=(y-2)/1=(z-1)/5 and the point (4, 8, 7).