SOLUTION: he number f of miles a helicopter is from its destination x minutes after takeoff is given by f(x)=40−2x. What is the distance and length of time of each flight

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Question 1011251: he number f of miles a helicopter is from its destination x minutes after takeoff is given by f(x)=40−2x. What is the distance and length of time of each flight
Answer by KMST(5345) About Me  (Show Source):
You can put this solution on YOUR website!
At x=0 minutes after takeoff,
the helicopter is taking off,
and is at 40-2%2A0=40-0=40 miles from its destination.
So, the distance of the flight is highlight%2840%29 miles.
When the helicopter reaches its destination it is 0miles from its destination, at it has been flying to its destination for x minutes,
with 40-2x=0--->40=2x--->x=40%2F2--->x=20 .
So the flight takes highlight%2820%29 minutes.