Let $\mathrm { f } ( \mathrm { x } )$

question 231

Multiple Choice

Let $\mathrm { f } ( \mathrm { x } )$ compute the time in hours to travel $x$ miles at 49 miles per hour. What does $\mathrm { f } ^ { - 1 } ( \mathrm { x } )$ compute?

• A) The hours taken to travel \(x\) miles at 49 miles per hour
• B) The hours taken to travel 49 miles
• C) The miles traveled in \(x\) hours at 49 miles per hour
• D) The miles traveled in 49 hours

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