Two similar triangles are shown on the coordinate grid: which set of transformations has been performed on triangle abc to form triangle a'b'c'?

Your answer will be B dilation with a scale factor of 2 and then reflection across the x- axis because you first set up your pre-image to your new image and see what you have to time to get the number correctly set and then from their you plot the points and figure out that you have to reflect it across the x- axis