Concept explainers
Reminder Round all answers to two decimal places unless otherwise indicated.
Note Some of the formulas below use the special number
V, in feet per second, is a function of the time t, in seconds, since the ball was thrown. The formula is
if we ignore air resistance. The function V is positive when the ball is rising and negative when the ball is falling.
a. Express using functional notation the velocity
b. Find the velocity
c. What is happening
d. By how much does the velocity change from
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Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)