Please help with these coordinates! I only need help with 6, 7, 9, and 10 :(

For reflection over x you multiply y by -1, For reflection over y you multiply x by -1.

So, the new point for each are:
6. (-4,-2)(3,1)(-1,-1)(-2,-3)
7. (4,-4)(3,-4)(3,-2)
9. (2,0)(1,-4)(4,3)
10. (-3,-2)(-1,3)(3,2)(0,-2)

Skew lines(segments) are lines(segments) in 3 dimensions that do not intersect the given segment and are not parallel to it.  ae, bf, eg, and fh are your skew segments.  i hope that : )