Are (-1,6),(2,-4),(3,8),(3,-12),(5,1) functions?

If a(0,0,0) and b(2,2,2) are points in coordinate space, how many paths are there from a to b that move from one lattice point to another in the positive x-,y- or z- direction?

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

With alll of except for the 2 that i did already