Chapter 8, Problem 2SYU

To determine

Whether the statement “If a function $Q=f\left(x,t\right)$ gives an indication of the quantity Q of pollutants, in parts per million, at a distance of x kilometers at time t from a waste incinerator post the incineration has come to an end. Since $f\left(1.5,6\right)=4.1$ then the units of $6$ are hours.” is true or false.