To answer the questions regarding triangles and slopes based on the graph you mentioned, here’s a general approach you might take, as I can't see the graph:
a. If triangles ABC and DEF have equal angles or equal sides, they may be classified as congruent triangles (if they are the same shape and size) or similar triangles (if they have the same shape but not necessarily the same size). You should choose one of these based on the graph's information.
b. The slope of a line can typically be computed as the change in y (rise) divided by the change in x (run) between any two points on the line. If points A and G are known, you could calculate it as \((y_G - y_A) / (x_G - x_A)\). You might insert the calculated slope value here or provide a simplified response if the information allows.
c. The relationship might refer to how the triangles or points are related. It could be described as linear, proportional, or could refer to some geometric property depending on the graph context.
Please replace the placeholders with specific responses based on the graph you have.