ANSWER:
C. 50 fewer people will attend for every dollar the admission price increases.
Explanation:
The equation in its slope and y-intercept form is as follows
![\begin{gathered} y=mx+b \\ \text{where m is the slope and b is the y-intercept} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/loja8ycjqk4136yhemv3h3f21gspux688i.png)
We have the following equation
![n=800-50p](https://img.qammunity.org/2023/formulas/mathematics/college/211mj5ondcj6dxcwz3ku8ygzzq8m28scje.png)
We can see that in this case the slope is - 50, therefore the answer would be 50 fewer people will attend for every dollar the admission price increases.