Solve the problem.A rocket is shot straight up in the air from the ground at a rate of 80 feet per second. The rocket is tracked by a range finder that is 431 feet from the launch pad. Let d represent the distance from the rocket to the range finder and t represent the time, in seconds, since "blastoff". Express d as a function of t.
A. d(t) = 4312 + (80t)2
B. d(t) = 431 + 80t2
C. d(t) = 
D. d(t) = 
Answer: D
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at 
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