I am wondering what it means, and don´t understand it?

Question

Graph the dilated image of triangle JKL using a scal factor of 2 and (0,0) ad the center of dilation

Answer 1

This simply means that you multiply every coordinate by 2. If a corner is (2,5) it becomes (4,10). If it's (0,6), it becomes (0,12).

You also add the center, so if the center is (1,1) with the points given above, your new points are (5,11) and (1,13) because you're adjusting so your center is just that. Because the center is the origin in your problem, we're adding zero.