Solution:
Given:
A taxi fare service charges $2 for every mile.
This can be represented by the function;
[tex]\begin{gathered} y=2x \\ where: \\ y\text{ is the taxi fare} \\ x\text{ is the number of miles driven} \end{gathered}[/tex]From the equation;
[tex]\begin{gathered} y\text{ is the dependent variable} \\ x\text{ is the independent variable} \end{gathered}[/tex]Therefore, the dependent quantity in the relationship between distance and taxi fare is;
The taxi fare after a certain number of miles have been driven.