For circle B, BG = BE, BG is perpendicular to DC, and BE is perpendicular to FA. What conclusion can be made?
a circle with center B and chords DC and FA, a segment from B to chord DC intersect chord DC at G, and a segment from B to chord FA intersects chord FA at E
segment DC is parallel to segment FA
segment CD is congruent to segment EB
segment GB is parallel to segment EB
segment DC is congruent to segment FA
This point is the local minimum because it is the lowest point on the graph.
It is also the global minimum.
You can see that this is the lowest point the graph reaches, therefore, it is the local minimum of this graph.
On image I think it is like melting, and pizza is heterogeneous mixture