Challenge 2: Coordinate Unpacking — Possible Solution
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points = [(1, 2), (3, 4), (5, 6)]

for x, y in points:
    print(f"x={x}, y={y}")

Output:
x=1, y=2
x=3, y=4
x=5, y=6

WHY THIS WORKS AS AN ANSWER
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for x, y in points combines two things covered separately earlier in
the chapter: the for-loop iteration from Chapter 4, and tuple
unpacking (x, y = point) from this chapter's tuples section. Python
allows the unpacking to happen directly in the loop header, so each
tuple in points is unpacked into x and y fresh on every iteration,
without a separate point variable or a manual point[0]/point[1] step.

This only works cleanly because every tuple in points has exactly two
elements, matching the two names (x, y) being unpacked into — the
same "shape must match" behavior demonstrated with a single tuple in
the chapter's own x, y = point example.

The f-string f"x={x}, y={y}" then reuses the formatting covered in
Chapter 5 to build each output line.