ABC is congruent to DEF by (a) reflect over the y-axis and (c) translate up 2 units
Explaining why ABC is congruent to DEF
From the question, we have the following parameters that can be used in our computation:
The triangles
First, we can see that the triangles are on the opposite sides of the y-axis
Also, both figures are congruent
This means that that the first transformation is a reflection across the y-axis
Since both figures are congruent and they are now on the same side of the y-axis
The next step is translation
Here, we translate up by 2 units