The form of the linear function is
![f(x)=mx+b](https://img.qammunity.org/2023/formulas/mathematics/high-school/6o509bhbp213rd8y4ne1d5fl5x7nzt1y7d.png)
m is the rate of change
b is the initial amount
Since Becky earns $14 per hour, then
The rate is $14 per hour
m = 14
Since there is no initial amount, then
b = 0
Substitute the values of m and b in the form of the function above
![\begin{gathered} f(x)=14x+0 \\ f(x)=14x \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/n129y03lytnuss3zsgj0wyk2gub0t2yr03.png)
The function that represents the amount of money she makes is
f(x) = 14x, where x > 0