@phaedral @Infrapink @jacquiharper
It's a rate of change.
The distance changes 20 miles for each 1 hour.
It could be instantaneous, and just the rate at a particular moment on a nonlinear function or it could be the constant rate of change of a linear function.
https://sauropods.win/@futurebird/113529342522658429
@futurebird @Infrapink @jacquiharper ok
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