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A new food delivery robot on a college campus is doing test runs at a constant speed of 4 miles per hour. The average test run is 3 miles from the campus cafeteria but varies a distance of 1.5 miles more or less than that.
If [tex]$x$[/tex] is the number of hours the robot is performing a test run, the equation that can be used to find the minimum and maximum time (in hours) for a test run is [tex]|3x - 1.5| = 4[/tex].
For each test run, the minimum time is [tex]\square[/tex] hours and the maximum time is [tex]\square[/tex] hours.