Response:
Second option: 
Third option: 
Detailed explanation:
The missing graph has been provided.
The attached image illustrates the graphing of the following system of linear equations:

Notice the intersection of the lines.
According to the definition, if lines in a system of equations intersect, then there is only one solution. This implies that the intersection point is the solution to that system. This can be expressed as:

Represented by "x" for the x-coordinate and "y" for the y-coordinate.
Here, it's noticeable that:
- The x-coordinate of the intersection point lies between
and
.
- The y-coordinate of the intersection point is situated between
and
.
Therefore, you can conclude that the forthcoming points (Refer to the options given in the exercise) are potential approximations for this system:

width = x perimeter = 80 or 2(x + l) = 80. Therefore, l = length = 40 - x, leading to the area = x(40 - x), which cannot equal zero. Thus, the condition is x(40 - x) > 0, establishing the domain as 0.
Answer:

Step-by-step explanation:
The equation provided is:

Applying the quadratic formula:

Based on the details given:
a = 2, b = -4, c = 7
Consequently:

=> 