It can be folded by the up covering the down, it can be folded by the left or the right covering one another, you can even do it diagonally. Any angle of the hexagon covering the one on the opposite side will show reflections symmetry.
<span>The vertex is at (5, -4)</span>
The answer C. The slope is negative! See how if you start from the left top side the line is slanting down? That means the the slope is decreasing onwards to infinity. If it was positive (it’s not!) it would start from the right bottom side and go upwards.
hope this is helpful!