Answer:
By Proportionality relationship: A proportionality in which two quantity vary directly to each other.
i,e
![y \propto x](https://img.qammunity.org/2020/formulas/mathematics/high-school/iy5uxbgm9nve95at9gffh944ppe85ojp0j.png)
then; the equation is of the form:
where k is the constant of proportionality.
As per the given statement: The function m(g) provides the number of miles a car can travel on g gallons of gas.
By definition of proportionality, we have;
.....[1] where k is the constant of proportionality.
Also, it is given that the fuel tank holds 14 gallons which allows a maximum ride of 504 miles.
⇒
and m(g) = 504 miles
Substitute these in [1] to solve for k;
![504 = 14k](https://img.qammunity.org/2020/formulas/mathematics/high-school/jajmsucmjh3yu6xmkyswg4slbsvtoga5bm.png)
Divide both sides by 14 we get;
k = 36
Therefore, our equation become:
where g represents the number of gallons and m(g) represents the distance, in miles
Domain for this equation is; [0,14]
0 represents the empty tank and 14 representing a full tank.
Range: [0, 504]
0 represents the miles traveled on an empty tank and 504 miles represents the distance traveled on a full tank.