Answer:
Number 2:
The graph in the question is given below as
The slope of a linear graph is given below using the formula
![\begin{gathered} m=(y_2-y_1)/(x_2-x_1) \\ slope=\frac{changeiny}{change\text{ in x}} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/admfkvm7amijdm6qmrk4s7vc6j72ml05wh.png)
The y-axis is represented below as
![\begin{gathered} y-axis=total\text{ charges\lparen dollars\rparen} \\ x-axis=time\text{ worked \lparen hours\rparen} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/gkg1kxukvi7hasg3om6bnx5iax62ol8n83.png)
![\begin{gathered} slope=\frac{change\imaginaryI ny}{change\text{\imaginaryI nx}} \\ slope=\frac{changeintotalcharges(dollars)}{change\text{ in time worked\lparen hours\rparen}} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/du91ag4y3steq6a5w793jjkhc1vgkz7vqj.png)
Hence,
The best interpretation of the slope of the graph is
The contractor's hourly rate
OPTION A is the right answer