Suppose the temperature of a metal plate is given by f (x, y) = the temperature of the metal plate in°C at position (x, y), measured in cm Suppose that Vf (3, 4) = -2i + 3j An ant walks along the plate with a position vector at time t (s) given by F(t) = (t² + 2) i + 4tj Find the rate at which the temperature the ant is experiencing is changing at t = 1 . Include units in your answer.

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