A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(t), in feet, at different times, t, in seconds: f(t) = −16t^ + 32t + 90 The average rate of change of f(t) from t = 4 seconds to t = 6 seconds is ____ feet per second

A ball is thrown upward from the top of a building. The function below

1.	A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(t), in feet, at different times, t, in seconds: f(t) = −16t^ + 32t + 90 The average rate of change of f(t) from t = 4 seconds to t = 6 seconds is ____ feet per second
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