Let f(x) compute the time in hours to travel x miles at 29 miles per hour. What is the interpretation of $\mathrm { f } ^ { - 1 } ( 7 )$
A) The hours taken to travel 29 miles
B) The miles traveled in 29 hours
C) The miles traveled in 7 hours at 29 miles per hour
D) The hours taken to travel 7 miles at 29 miles per hour

Question

Quizplus · Accepted Answer

The inverse function $f^{-1}(7)$ finds the input x that would result in an output of 7 from the original function f(x). Since f(x) computes the time to travel x miles at 29 miles per hour, $f^{-1}(7)$ finds the distance traveled in 7 hours at 29 miles per hour.

Let F(x) Compute the Time in Hours to Travel X f−1(7)\mathrm { f } ^ { - 1 } ( 7 )f−1(7)

Let F(x) Compute the Time in Hours to Travel X $\mathrm { f } ^ { - 1 } ( 7 )$