1) Draw the triangles JKL and J'K'L' in a same coordinate system.
When I did that, I realize the if you translate the triangle JKL 1 unit left and then you reflects the image across the x-axys you get the you get the triangle J'K'L'.
So, select the boxes in that same order:
1) translation 1 unit left
2) reflection across the x - axis.
2) The answer ot the second question is line r.
That is called the line of reflection because if you reflect the figures through it you will have the same figure.