Reserve of Token Y (USDC)
  ^
  | \
  |  \   x * y = k (Constant Product Invariant)
  |   \
  |    \
  |     \  <-- Initial State (x1, y1)
  |      \ 
  |       \   Trade: +Δx of Token X
  |        \  New State: (x1 + Δx, y1 - Δy)
  |         \
  |          \
  |           \
  |            \
  |             \
  |              \
  |_______________\________________________> Reserve of Token X (ETH)
                 x1   x1 + Δx

  * As Reserve X increases, Reserve Y decreases.
  * The slope of the curve (-y/x) represents the marginal price.
  * The curve is convex, meaning large trades experience exponential slippage.