Let L be the line with parametric equations
x = 6+2t
y = -7+t
z = -1+2t
Find the vector equation for a line that passes through the point
P=(6,-9,4) and intersects L at a point that is distance 3 from the point Q=(6,-7,-1). Note that there are two possible correct answers. Use the square root symbol where needed to give an exact value for your answer.