Reflection along x-axis is just a swapping of left and right sides. It does not change the size or area of the hexagon.
Hence, the correct option is B.
It would be 0 because as you go along it doesn't go up but keeps moving. An undefined slope is up and down/vertical.
Table C is a function, because none of the numbers in the X column repeat. (All the other ones do.):-)Hope I could help!!
10 root 2
10^2 + 10^2 = 200
200 is 10 root 2
