Answer:
1. Figure 3
2. 2881.4 cm³
Explanation:
The graph in figure 3 has a curve that fits the data best because it captures most of the points unlike the other two curves.
The curve in figure 3 has the equation;
![y=-16.9x^2 +430x+523](https://img.qammunity.org/2021/formulas/mathematics/high-school/a186ogjg07z9a6jcdurotrdzc22hplelnv.png)
2.
When using x=8, substitute the value of x in the equation with 8 to get
y = -16.9*64 + 430*8 + 523
y= 2881.4
= 2881.4 cm³