The height in feet, h , of a model rocket t seconds after launch is given by the equation h of t is equal to 3 plus 70 t minus 16 t squared The average rate of change in h of t between t is equal to 1 second and t is equal to 3 second is 6 What does the average rate of change tell you about the rocket?
Answer
A
The rocket is traveling at a constant rate of 6 feet per second between t is equal to 1 and t is equal to 3 .
B
The rocket is traveling six times as fast when t is equal to 3 than it is when t is equal to 1 .
C
The rocket is at a greater height when t is equal to 3 than it is when t is equal to 1 .
D
The rocket is 6 feet higher above the ground when t is equal to 3 than it is when t is equal to 1 .