The graph of a function f is given. Use the graph to find the indicated value.
-Let f(x) compute the time in hours to travel x miles at 60 miles per hour. What is the interpretation of $\mathrm { f } ^ { - 1 } ( 8 )$
A) The miles traveled in 8 hours at 60 miles per hour
B) The miles traveled in 60 hours
C) The hours taken to travel 8 miles at 60 miles per hour
D) The hours taken to travel 60 miles

Question

Quizplus · Accepted Answer

The interpretation of $f^{-1}(8)$ is finding the input x that results in an output of 8 hours in the function f, which calculates time to travel x miles at 60 miles per hour. Thus, it means finding the distance traveled in 8 hours at 60 miles per hour.

The Graph of a Function F Is Given f−1(8)\mathrm { f } ^ { - 1 } ( 8 )f−1(8)

The Graph of a Function F Is Given $\mathrm { f } ^ { - 1 } ( 8 )$