It seems like you're referring to a specific graph, but I'm unable to see or analyze it. However, I can help you understand how to approach answering your questions based on general knowledge of triangles and slopes.
a. Triangles ABC and DEF are called: You might be looking for terms like "congruent triangles" if they have the same shape and size, or "similar triangles" if they have the same shape but different sizes.
b. The slope of the line AG can be written as: The slope of a line is typically calculated as "rise over run," which is the change in y divided by the change in x. If you have the coordinates of points A and G, you can use the formula (y2 - y1) / (x2 - x1) to find this slope.
c. This is a: If you are referring to the relationship established by the slope, you could use terms like "linear" if the relationship is linear, or "proportional" if the slope indicates a constant ratio.
If you can provide more context, I can help refine these answers!