Question

Johanna is driving from Orlando, FL to Dallas, TX. The distance between Orlando and Dallas is 1,084 miles, Johanna's average rate of speed is 65 mph The function that representshow many miles Johanna has left on her trip after t hours is f(t) = 1084 - 65t.Enter the number of miles Johanna has left on her trip after 12 hours of drivingmil

Answer 1

We already have the equation that gives us the number of miles Johanna has left on her trip - it is the function f(x):

`f(x)=1084-65t`

where t is the number of hours of driving.

After 12 hours of driving, we have t = 12, putting that into f(x) gives

`f(12)=1084-65(12)`
`f(12)=304`

Hence, Johanna has left 304 miles after 12 hours of driving.