# Question: as c runs through all real numbers the set of...

###### Question details

As c runs through all real numbers, the set of points (1, 3, c)
trace out a line in R3. Determine how this lines passes through the
classroom.

Does the point (3, 1, 2) lie on this line?

Can you find all the points on this line inside the sphere of
radius 3 centered at the point (3, 1, 2).